So I'm trying to find more information on GoG Galaxy such as the release date, the features, looks, etc.

There is no realese date yet and I think also nothing on the looks since in the two beta tests it was integrated into the games and not a seperate client.

I think the only real informations where in this thread : http://www.gog.com/forum/general/introducing_gog_galaxy?staff=yes

release date is on valve and 3D realms time
it wil be released whenever its ready
in the near future

we think it will be 2019

I think you have the numbers in the wrong order, it's actually 9012.

well whenever it is it wont be any time soon

They said it's coming out piecemeal. Some parts are done, some parts are still a work in progress. You can play with Galaxy's back-end with Aliens vs Predator 2000. But the client won't be ready until later.

I strongly suspect the client will release on November 27th along with the release of the Witcher Board Game. But they're not telling anyone if that's the case.

**SPECULATION**
The Witcher Adventure Game had been in beta for Galaxy and is set for release on November 27, 2014. So, maybe we will be seeing some Galaxy components at that time as well.

EDIT: Tallima beat me to the punch-line.

The Witcher AG beta was use to test it, so its likely it will release by the complete game release date (27 November).

and it was supposed to be co-released with D:OS August this year.... Yeah, probably good that they go some backlash against that D:OS thingy.

Oh yeah, that makes sense. Would be awesome. Can't wait to try Galaxy.