I would like to play Wario Land 4 but I missed the ambassador program. Hopefully Nintendo brings GBA VC to the 3DS soon. It would be kind of ridiculous if Wii U got it first.
Considering they've said they don't plan to release GBA games on the 3DS eShop, but they do plan to release GBA games on the Wii U eShop, it's not that ridiculous. It's not a matter of "first." It's a matter of "at all."