Underworld Ascendant - Compared to the below, this one seems to have made the most progress. Plenty on the physics and what the game will look and play like, along with the kinds of races we can expect to find in the underworld.

Battletech - still very early days yet, but will be closely following once the details start rolling in.

Divinity Original Sin 2 - as above.

Pathologic - a lot of talk about how this one will be a different take on the same thing and some concept art. But nothing much on the mechanics of the game, just theory more than anything at the moment.

Bard's Tale IV - nothing since they moved to a new studio last November. I guess things have been a little slow since then.

Expeditions: Viking. It's predecessor Expeditions: Conquistador has long been one of my favourite games on GoG.

Parkitect

Defender's Quest 2

At the Gates

Cyberpunk 2077

I'm definitely following this one too (and it should be just a few months away!), should be great!

Thanks :))
Well, I think I became old and careless or maybe it's beer's effect. :P

I've been following this one too. I was a little disappointed they went with Vikings. I feel like that theme has gotten a lot of play recently. I think something like Europeans to Japan or Africa would have been cool. Nevertheless, the mechanics behind the game are good, so hopefully they can dish out a good story!

I've also been following The Banner Saga 2. They've been busy porting #1 to other consoles, but should hopefully have it out soonish.

Ashes of the Singularity

First of all, it is commuted to come to GoG DRM free.
Second it try to make use of the multi core processor to make a non cheating AI
Third it is one of the first to use Direct X 12 & Vulcan
Forth it is confirmed for Linux with Vulcan so Window 10 is not needed.
Fifth, the company have a good record of keep working on their games until they become good.

Another is Cyberpunk 2077 for obvious reason, but there are not much info about it.

Other less followed but put money in kickstarter or followed sparingly.
Then there is D:OS 2, Torment, POE expansion, BATTLETECH, Grim Dawn, Sunrider, Civcraft. Greywalker, After Reset, That Which Sleep, Universim, Banner Saga 2, Star Citizen, The Dwarves, Earthlock: Festival of Magic, Warhammer 40,000: Inquisitor - Martyr, Endless Space 2, SpellForce 3,

Been following this game called Stardew for a long time , its like the harvest moon games the dev is working pretty hard on it , hoping to see a pc release soon
http://stardewvalley.net/

Oh yes, I'm also incredibly interested in Parkitect and At the Gates. Parkitech looks like it is still a long way off though, but at least there is OpenRCT2 to occupy me in the meantime if the themepark itch becomes too intense.

I'm intentionally NOT following the development of Torment: Tides of Numenera

I want to be completely blind to everything I can possibly be about it and go into it clean-slate proabably 6months after it is released (because of patching.) I could play the alpha if I wanted, but, NO, I just stay away! No updates read, no comments read, no screenshots seen, no music heard.

Overgrowth

Lugaru was a surprisingly great action game with interesting setting and characters (BLOODTHIRSTY ANTHROPOMORPHIC LAGOMORPHS!! And cheap-as-expected wolves..), despite low budget values, and this sequel looks so promising with each little update (now released every friday!) that makes me forget I pre-ordered it in 2012.

Boy, how the time flies.

I really hope that one is good. There is a a dangerous lack of proper battletech games, and the tactical ones like Mech Commander are the most interesting. At least the original is free these days, but its lengthy campaign is over far too quickly given that there really isn't anything else out there like it, except for its almost-as-good sequel of course.

Routine, also Mount and Blade 2, No Man's Sky and The Long Dark