Regarding what you asked (and I'm sorry I ignored it, it was just a case of tl;dr), the only thing I can think of, and which has been suggested in the past, is to add more old platforms, via emulators.

Someone should keep a list or something...

Yeah, it may be GOG is running out of old games, after all no one is making more old classic MS-DOS games anymore so it kinda makes sense.

I hope GOG can fill the void by releasing some newer games, I'd prefer mostly semi-new AAA-titles, from 2004 to 2010 or so, and even newer. There are far too few of those here.

So you'd prefer a bullet point argument that goes nowhere constructive at the end of the day? I don't claim that GOG releases more or less older games versus newer games. However, they are releasing more and more newer games than I recall seeing in years past. Nobody denies that. My point was that GOG may have tapped the ceiling on a reasonable amount of the available top tier classics. Of course there are always more old games and good ones that we will continue to see (IE again Wing Commander was an excellent example).

However, how can we expand? I offered DLCs for classic games as an example. Repackaged fan-made add-ons. I think that is a great way to breathe life into some of the favorite franchises.

Oh, it's this thread again.

I love that thread. An example of a way that GOG users are actively working on a solution rather than complaining.
Just to get caught up on the status of that possibility. What have been some of the roadblocks and hurdles? For starters is GOG even interested in this idea? Has there really not been even a single platform/console that they can get any headway on? A huge pool of Good Old Games could become available.

Then I guess I misunderstood your post (however you started by saying "we've had remarkably less older games getting released on GOG" and that's probably not true). Anyway, I still don't really get what you're driving at and I don't see a problem in what you describe. What's this about then? Do you want them to sell stuff to you that you'd normally get for free?

People forget that new games become old so GOG will never stop with old games but I think it's likely that due to the huge market it might become less profitable to acquire titles between the 80s to mid 90s, depending on how hard it is to find them. On the other hand if GOG becomes even more successful it might attract companies that own licenses for older titles that are just lying there, not giving them any income.

The point of the thread is to discuss and brainstorm ideas. Some good examples so far:

1) Releasing DLC/Add-ons for classic games. Newly created or fan-made
2) GOG users are actively assisting with researching the copyright license holders for "abandonware" games
3) Emulating legacy platforms and console games to expand the game library

A long post but I think worth the read and especially the conversation.

I respectfully disagree. read it all before...

No. Yes and yes. They stopped being Good Old Games 1 1/2 years ago. Now it's just GOG. That's what it seems like. Yes and no. I haven't thought about it. But it was expectable. The old developers and publishers are gone, the code of some games is gone, the rights are gone (they aren't "gone", but splitted between too many people and bankrupt companies), some publishers are paranoid about DRM free games, some publishers just don't care...

And you have to remember that GOG is a company. They have to think about cost-benefit calculations as well. Sure, you can spend years of work for System Shock 2 (getting this one gave them a good media coverage). But you can't do this for... uhm... the Shannara video game, for example (I really liked it). You can't spend more to acquire the rights to sell a game, than you would earn with it.

Short: It's getting harder to get old games AND they have less big names that are worth the trouble. I'm still hoping for DRM free releases of new "old" (4 or 5 years) AAA games (like they did with Assassin's Creed). I have skipped some of them because of their DRM. But we'll have to wait if this happens.

I can dig that.

1) GOG has not ran out of Good Old Games to release. Release Data once more
2) Fever_Discordia is keeping a list of IPs from already signed companies that could find their way here, many of them being excellent games. Negotiations are (hopefully) proceeding.
3) Just because person A doesn't like subset B doesn't mean B is the only thing being released. This year saw Chaos Overlords, Wizardry, Cultures, Leisure Suit Larry, Great Battles, Blade of Darkness and quite a few more excellent games. So GOG still releases very good games.
4) The fact that GOG has had so far more Day 1 releases than pre-2k releases (30 vs 28) doesn't mean that GOG is no longer releasing old titles. It still releases them with the same frequency and in the same numbers, but it is also releasing newer titles as well. The percentage may be smaller, but 25% of 100 is higher than 50% of 40.

Finally, you mention that you have ~60 titles, and you no longer find something that interests you in the GOG catalogue, especially in the last few months. It is possible that you are only interested in a very specific subset of games (or that you already have the games in physical form and not interested in a digital copy). If asked to make a list of GOG's must play games, I think I could easily reach 100 titles, though if you ask me for must play adventures, they would (obviously) be less.

Personally, I am not interested at all in any Amiga, NES or PSOne games, since I haven't had any experience with those platforms growing up. So if GOG started releasing those, I would probably meh, but let people who wanted said titles enjoy them.
As for addons for classic games, I think GOG should keep it at Mod Spotlights, especially as I know the chaos mods can be.

So, I start to rant (once more), but rest assured that GOG hasn't abandoned older titles, even if those released aren't titles you recall or like.

To answer your last question. Perhaps? I used Baldur's Gate as an example, but in some ways its a bad one. Yes it has a ton of excellent fan-made add-ons, but realistically the hard work of compiling them all and making them compatible has already been done, so it's a tough sell to make some pay for content that they get for free AND can already install very easily.

However, there are plenty of games with add-ons, map packs, etc. that weren't fortunate enough to get a similar treatment over the years. So in theory GOG could provide that service. Scoop up the available add-ons and repackage them together for whatever classic game. I would pay GOG to do that legwork for me? It would be worth the convenience. Again I understand the licensing nightmare scenario of reselling fan-made content for a copyrighted product. But in my utopia world that be awesome. Hence why I said pitch an idea, let's ignore the logistics, and see what ideas people can come up with.