You and me both!
I have a whole laundry list of games I want to see from them, I'll just list the likely to possible due to something in the past:
Sonic Dimensions
Sonic & Sega All-Stars Racing 2
Phantasy Star Online 2
Jet Grind Radio by Headstrong (were working on a Wii pitch but that never came to be)
Shining Force Gear (trademarked and leaked by an insider in JP to be Wii-bound by Neverland, but poof, it never even got an official mention)
Billy Hatcher 2 (nothing about this, I just adored the original and am ashamed at Sega for not making a Wii-sequel, the controls would work super well)
Sonic Riders 4 (I really liked Zero Gravity, and the original for its style and feel, but ZG was more polished, NOW PRO were behind the original but O-TWO took over afterwards, get them back for a Wii U entry)
And get the Colors team on NiGHTS 3! Tragic that JOD was obviously rushed...
The list goes on!