...as to which, if any, big release happens in Dec. for GoG?

Well I know there was talk of the tomb raider ip holders social media feed saying they was looking into releasing them on other platforms then add that with earlier this year when we had a chunk of em pop up here GOG hinted at more coming in the near future via a news letter phrasing

Hopefully Dungeon Master 1+2

I'm guessing TR Shadow and Rise like BanditKeith2 hinted at, or maybe Nicalis games (Isaacs and/or Cave Story+) since the company entry was recently added to the catalog (via the "unofficially confirmed" thread).

https://www.gog.com/forum/general/games_that_are_unofficially_confirmed_for_release_in_the_future_part_2/page666

Or maybe the Star Trek Armada games unless they're still being fixed or GOG is waiting for some other special occasion

actually "Cranky Bitter GOGgers: The Game (Feat. Chunky Pixel Art Specifically for Those Who Hate It)" :P

Hoping for The Binding of Isaac: Rebirth at the very least. Not impressed with the releases so far this year. Lacking in compelling, interesting releases to buy. Last year was better in that regard, as far as I'm concerned.

Interesting guess on the isaac one as last I was aware the maker of it had no plans whatever to put a game on GOG seeing GOG as paraphrasing the guy here to put it in more pleasant words'' a legal version of piracy '' Because the creator of the game seen a game not tied to a store launcher as piracy for it has no ''checks'' Granted not saying the person could have changed the viewpoint as its been quite afew years or maybe the person seen sales number stagnating and was finally willing to put it elsewhere..

Whatever the case I admit the game interests me you stated and the other one too

Skyrim

Highly unlikily Skyrim shows but odds are a safe bet do too all the Bethesda sales being regular for afew months now that a Bethesda owned ip will be showing up at the very least .. for me personally I am hoping Rage is one such game

a new cyberpukk patch ?:O

I would like to see Nier Automata, but I guess we have to wait a littlebit longer for that one.
Maybe Days Gone or Fallout 4.

My guess would be the "Super Awesome Game From Your Childhood of Which You Can't Remember the Name"...

Creepy Dating Sim That Kills What Hope For Humanity You Had Left: Defucks Edition

The missing Serious Sam games. Together with the HD versions of the first two games.

Sierra's The Hobbit adventure game. ( :

Max payne 1 and 2
the rest of the Rainbow 6 games
thanks!