NIS: five DS games planned, Disgaea amongst them?

Nippon Ichi Software has announced it is working on five games for the DS, and has already begun to tease us with incredibly vague details. All we know for now is that there'll be an action game, a management sim, a puzzle game (Puchi Puchi Virus? We suspect so), an RPG, and a tactical RPG.

Of the five, that last one caused much excitement in these parts, because it increases our chances of seeing some Disgaea goodness on our favorite handheld. We seem to recall NIS raising the possibility of a Disgaea port on the DS in the past!