[url=http://zeroescape.wikia.com/wiki/Zero_Escape:_Zero_Time_Dilemma]Zero Time Dilemma[/url], the third game in the Zero Escape series.

The above link leads to a page with spoilers for the previous games.

Delver is already great! Although to be honest I haven't played much since the last few updates. I can't wait to see the final product.

For me, Planet Explorers is one of them. It's one of just a few "early access" games I have bought (it and Planet Explorers, and Nekro via a bundle). The development has been incredibly slow at times due to the devs stopping and upgrading to Unity 5, and just general inability to meet a self imposed deadline but they just recently got to .90 Alpha. The game itself has a great base considering it's still in alpha. My only issue is that the standalone version has seemingly been abandoned, it's still on 8.5 I think. Oh and I wish they would add some new music, I'm sick of that darn one single song it has!

As far as games that are in development and not early access...Mount & Blade II: Bannerlord! I'm REALLY excited for Bannerlord!

Other games I keep checking now and then just to see if there have been any development

Against the wall
http://www.againstthewallgame.com/

Cube World
https://picroma.com/cubeworld

Storyteller
http://www.storyteller-game.com/

I don´t usually follow games meanwhile they are in development, but Yandere Simulator gain my atencion.

The Witcher 3: Blood and Wine Expansion
I played The Witcher 3 when it launched, and then in October I played the first expansion with the previous saves I had. Ever since then I wanted to replay the game, but it takes a lot of time and time is what I don't have right now. So, this might make me want to play it again from the beginning.

Shadow Warrior 2
It's nice to see a GOG release, a Linux one would be welcomed as well. Also the co-op feature seems like it might be fun.

The only two that currently come to mind are Bloodstained: Ritual of the Night and Ys 8.

Ditto... After having hope and then waiting a long time, and then finding it disappointing (D3 & SC2 among other games) you just lose all the hope and just... want the game and not the hype or buildup to getting it.

I was following Starbound right up to the point where the developers started playing pinball with the development, jumping from core mechanics one day to yet another pile of decorative items nobody is ever going to use.

That game really needs a new project manager.

As of right now, I have no idea of any up and coming games that I'm currently interested in.

It's an amazing project. Is there any chance to see it on GOG?

No, the remaster(s) are a recent decision, came about the same time as inXile's new Bard game, but they're being done by Rebecca Heineman.

Very nice. It can become a great Metroidvania title. I like Koji Igarashi's works.

For me:
Total War: Warhammer- I like Total War games and this one looks like the best ever because of it's setting. I don't know much about the Warhammer fantasy but it looks like it is made for Total War.)
Mass Effect: Andromenda- I played the Mass Effect trilogy in November - December last year and loved it. ME2 and ME3 are 2 of my favourite games of all time (Mainly for their gameplay.). I just hope they get it right, especially after the ending of ME3 (Which while bad, didn't ruin the entire trilogy for me.).
I would put XCOM 2 on my list as I have recently become excited for it. However, it is out in a couple of weeks and might have already been finished ahead of release.

Oh, how did I forget that one. Yes, this one I also have been following; watching the developer's videos and reading the blog. Hoping some of the issues that annoy me will be fixed in the new game.

Downfall-Remake

Treasure Adventure World

Silence - The Whispered World 2

The Last Crown - Blackenrock & The Last Crown