Here's a quick list of some of the systems, and games that are coming out from Sega in the coming months...(or years)
Aero Dancing 4,  PS2
The House of the Dead 3,      X Box
Hundred Swords, PS2
Pantasy Star Online, X box and Gamecube
Sakura  Taisen 4, DC (Hmmm...)
New Sakura Taisen, PS2
Sega GT 2002/ Online, X box
Shakatto Tamborine, PS
Shenmue II, X box
Skies of Arcadia, Gamecube and PS2
Space Channel 5 Part 2, DC and PS2
Switch, PS2
Virtua Fighter 4, PS2