What I'm looking forward to most:
Armikrog - never played The Neverhood, but Armikrog seems like it's going to be a real charmer and provide some original puzzles
Broken Age Act II - thought Act I was enjoyable if a little easy. With more difficulty in Act II the game could become something of a modern classic.
Dreamfall Chapters - haven't played the first episode yet as I'm waiting to see how the updates play out, as there seem to be some technical and performance issues.
Kentucky Route Zero - this is a pretty unique and surreal experience. I have no idea where it's going but Act III was pretty damn interesting.
Obduction - didn't back it but have followed with great interest since the campaign.
Silence: The Whispered World II - enjoyed TWW quite a bit. Not sure how the lack of inventory in this game will affect gameplay, but Daedalic are some of the best at visually telling stories.
The Devil’s Men - don't know much about this one, but same reasoning as above. Haven't disliked any Daedalic games I've played.
Syberia III - one of my favorite series. Hopefully the wait is worth it.
The Book Of Unwritten Tales 2 - the predecessor is one of the best adventure games in the past 5 years. If this has the same level of charm, humor, writing, and overall gameplay it should be a hit among adventure fans.
Lost Horizon 2 - the first game was pretty fun, albeit not very challenging, but I'm always in the mood for a good swashbuckling adventure.
Stasis - might be a surprise hit that appeals outside of core adventure markets (the isometric view reminds people of Fallout, although obviously Stasis isn't an RPG). The atmosphere and visual aesthetic are stunning. Mark Morgan is doing the music, too (again, Fallout!
).
Spaceventure - I'd all but forgotten about this one and considered it my only real Kickstarter/crowdfunding disappointment. I still remain skeptical and will be surprised if it comes out (or isn't broken up into episodes with extremely long interludes), but if/when it comes out I'll be eager to see what Mark and Scott have done.
Mage's Initiation - there hasn't been much lately in terms of updates, but the game has looked like it's progressing nicely.
Grim Fandango / DoTT - no explanation necessary
Technobabylon / Shardlight - always in the mood for a dystopian or cyberpunk adventures, and the Wadjet seal of approval for publishing is all one needs to know.
Overall looks to be a great year. If 2013/2014 was a period of adventure games making a small resurgence, 2015 seems to be all about staying power. Big titles like GF and DoTT will attract wide audiences, and hopefully people will enjoy experiencing those games and take interest in other adventure titles.
Also, would I be crazy if I suggested that Daedalic and Wadjet Eye are the closest things to modern LucasArts and Sierra, respectively? I don't mean they're equivalent in overall quality necessarily, but they evoke similarities regarding visual style, gameplay, writing, and overall presentation. The Daedalic comparison stems from their roots in humorous or bizarre games (Edna & Harvey, Deponia), while Wadjet Eye (or just AGS) games remind me of the heyday of Sierra and the SCI games. Both companies seem to be on a roll the way LucasArts and Sierra once were. Let's hope it lasts.