I'd air on the side of "mistake" as GOG was just riding off of what the OP said.

It would certainly be cool to see GOG get into the emulation of games, but I figured GOG would have to get the go-ahead from Sony or Nintendo.

I imagine XSEED will wait and see how the first one does before they commit to releasing the second one.

Though, I'm not sure if seeing Agarest Zero here is actually desirable, since it has a reputation of being painfully mediocre.

Since Gex is not owned by either sony or nintendo, gog does not need the "go ahead", but they would need the psx bios to correctly emulate the psx version, but the n64 has no bios and there are open source emulators out there for said console.

While it's not owned by Nintendo, their license for the N64 version hasn't necessarily expired.
Not helped by the fact that the N64 version was published by a company that has nothing to with Square-Enix (Crave Entertainment).

Interesting.

Gex 3 is probably a mistake, the marketing folks don't necessarily know exactly everything biz dev is up to, and I just assumed Gex 3 was on PC too.
And Agarest's release has been pushed back to December 1:
http://blog.ghostlight.uk.com/post/the-steam-autumn-sale-begins

About what "license" are you talking about?

You know. "Licensed by Microsoft/Nintendo/Sony/whatever" The license to be able to publish a game on a console. Might entail restrictions like not being able to copy a game 1:1 to another console or a PC.

Said license http://contracts.onecle.com/bam/nintendo.lic-n64.2000.02.18.shtml is exclusively for selling said n64 game in cartridge format, since whoever has the intellectual property rights to said game has in 2014 no intentions of ever manufacturing a game cartridge with Rex 3 for the n64, they no longer need said license to sell said game in other venues. If they required the original tools (aka Licensed Proprietary Information) used to create the game to release it for windows it would be a problem, but said tools are no longer required.

They still couldn't release it 1:1. They would have to modify the game to remove any mentions of Nintendo in it. If you want a similar example, I can provide you from one from my own games: Konami Collector's Series. The game contains the NES versions of Castlevania 1-3 and Contra 1-2, but absolutely no mention of Nintendo, either on the box, or in the game itself.

As for using an emulator found on the internet, I doubt that they would want to do that. Console companies are notorious for wanting to use proprietary ones.

So ours get delayed so they can discount on steam... and we end up paying fullprice at launch on here.. how old is the game by the way?.
Be interesting to see what the launch price will be here considering all the dlc available for it.....

That can be easily done with an hex editor, heck, back in high school we used to do it all the time to apple II programs. Proprietary emulator is an euphemism for stolen code. Since open source emulators release the source code game companies do their own modified compiles (even if they breach the GPL). How can I be so sure? Because even a half assed emulator that runs only one game (with several glitches) requires thousands of programmers hours to produce, there would be no profit if they really did "proprietary emulators". At least gog comes clean and acknowledges they use open source emulation to run old games on modern operative systems.

Maybe, maybe not. I'm not a technical guy.

You might not like it, but that's how those companies go about it.

It seems Crimzon Clover: World Ignition will be released December 4th on GOG:
http://www.neogaf.com/forum/showpost.php?p=140855350&postcount=4738

Starbound will come to GOG most likely once it is out of early testing/access, and is release ready.