This month's issue of Coro Coro Comics came with a tiny teaser for next issue's coverage on Operate Shooting Star:
According to the teaser (pictured), the "legendary EXE 1 will be appearing on the DS this winter as a fusion of cards and action RPG." Make of that what you will.
Right about now, it's starting to seem a lot more likely than it seems not likely that OSS is a remake. Again, more details on OSS are expected to coincide with next month's Coro Coro. Stay tuned.
Thanks to the Mega Man Network for the heads up.