Well, Binary Domain is the only other SEGA title I can think of that might have objectionable content like destroyed cities. All other titles in development might be delayed by a month or two, though most of them we don't know enough about yet (Sonic 4 Ep 2, PSO2, Shining Force, Puyo 20th, Sonic Anniversary), so a delay will probably not be noticed with those. I'll bet stuff like Max Anarchy will still hit the projected period of Fall, though it might just arrive later in the fall than it would have had the disaster not occurred.
I'd prefer SEGA of Japan take their time with their work and focus on clean up before getting back into development of titles.
I am curious, however, if Virtua Tennis 4 will be affected. Its the only SoJ title I know of with a US/Euro release date. Wonder if they'll still hit Late April, early May? Would it even be in development still?