Irem Software announced in Japan that a sequel to R-Type Command is in development and is called: R-Type Tactics II: Operation Bitter Chocolate.
The premise of the sequel has two human factions at war with the same types of weapons as the previous iteration. However, there are over 200 units this time around and some extra abilities.
Due on PSP October 29, US and UK details have yet to be announced.
Meanwhile, get the full thing over on 1UP.