BioWare's Greg Zeschuk recently expressed high hopes for continuing to work on Nintendo's handheld.
The studio recently let loose a new way of playing Sonic, combining his classic speed and platform elements with turn-based combat and stat building. So now that Sonic Chronicles: The Dark Brotherhood is sitting nicely on store shelves it seems that BioWare already has plans and ideas on future DS games.
...we recently released the Sonic handheld game for DS, and we’ve got other DS plans that we’re thinking about these days.
It’s quite a bit of stuff. We’ve a pretty a big plate full of things we’re working on. Across the studio we number probably over 400 people.
BioWare co-founder, Greg Zeschuk
Other details on forthcoming projects can be found on VG247's interview with BioWare.