there was only LttP for SNES.

NES: LoZ, AoL
SNES: LttP
N64: OoT, MM
GC: TWW, FSA, TP
Wii: TP

I would think that the next Zelda counsil game would appear on the Wii about Spring 2009, unless they want to hold it back for a holiday release.. then it'd be November 2009.