The DS seems to be home to remakes for Nintendo's Fire Emblem series, with a remake of Mystery of the Emblem on the way.
The 1994 game was originally released on Nintendo's SNES, only in Japan, and now it looks to be seeing a remake on the dual screened portable. It's not certain though whether it'll see a Western release, but it is likely given that previous DS Fire Emblem remake, Shadow Dragon, snuck past Japanese borders.
Not much else is known, except for a short announcement trailer: