2017 has some solid shows
Attack on Titan S2
Steins;Gate 0
Cardcaptor Sakura(New anime project details being teased for next month’s issue of Nakayoshi magazine).
Magical Girl Lyrical Nanoha THE MOVIE 3rd Reflection
Thunderbolt Fantasy Season 2
The Seven Deadly Sins Season 2
Senki Zesshou Symphogear Season 4/5
My Hero Academia Season 2
Fate/Extra Last Encore(by Studio Shaft).
Kizumonogatari Part 3: Reiketsu-hen
One Punch Man Season 2
Tales of Zestiria The X (2017)
Full Metal Panic Season 3
Rage of Bahamut Virgin Soul
FLCL (2017)-I would be surprised if it's delayed to 2018.
Lupin III: Chikemuri no Ishikawa Goemon
Cartoon/Adult Cartoons also have promising shows airing in 2017
Samurai Jack
SuperMansion Season 2.
Rick and Morty Season 3-I wouldn't be surprised if it delayed to 2018.
'Hey Arnold! The Jungle Movie.
Tangled The series(Staff of Wander Over Yandor/Gravity Falls are working on it).
Ducktales Reboot(Staff of Wander Over Yandor/Gravity Falls are working on it).
Billy Dilley’s Super-Duper Subterranean Summer(Promo pic isn't great but crazy talent are working on it)
Merriwether Williams (MLP FIM,LPS,Spongebob,) was confirmed to be a writer
@colorpulp works on some the boards of the first season now she is on star vs
Todd Hoppmeyer (Gravity Falls) is Production Coordinator.
Ben Adams ( Regular Show and Marvelous Misadventures of Flapjack) worked as Storyboard artist and BG Designer
Tara nicole (Wander Over Yonder) is a designer
Levon Jihanian who was a Background Artist of Over The Garden Wall and Wander Over Yonder will work on Billy Dilley’s Super Duper Subterrean Summer
Big Hero 6 The series.
Season 2 of Penn Zero: Part-Time Hero(Final Season). I hope the Anime inspired episode is good.