Here some consoles which I like to see some TAS in the future:
Atari 2600 VCS
Lynx
Master System
PC-Engine
There exist some great games for these consoles, so it would be great to see Emulators, which can make TAS movies. So the Emulators need SaveState (I think many already have this) and Frame Advance or Slow Down.
Games where I like to see a TAS are:
Dracula (Lynx) [Point and Click Adventure]
Golden Axe Warrior (Master System) [Zelda like game]
Neutopia (PC-Engine) [Zelda like game]
Neutopia 2 (PC-Engine) [Zelda like game]
And I think there exist some more games which are interesting for TAS movies. Ok, Atari 2600 VCS has no great graphics, but I like some games. Raiders of the Lost Ark is a great Adventure game.
Last TAS finished: Final Fantasy Adventure (4.0 Warp Glitch Run)
WIP in the moment: Tail Gator (GB)
Matty