Also should be noted that all the N64 games that have been released have been on the IQue. Coinsidence? I doubt it.
Still, Yoshi's Story was on the IQue as well so we could see it next, or, if the trend continues:
Excitebike 64 Super Smash Bros. Sin and Punishment: Successor of the Earth Animal Forest Dr. Mario 64 Custom Robo
Yes I know, the unreleased stuff from Japan is unlikely, but never say never.