There is some sense in using the Wii to bring mainstream 'casual' recgonition to their MS IPs.
If we follow that logic, we could see a version of VP on Wii with the main game(s) on 360.
Banjo-Kazooie and Kameo could also be brought to the Wii (likely last gen versions re-released and 'wiified') for the same benefit.
Ultimately, even Halo 2 could be ported to Wii with Halo 3 and Halo Wars (and dare I say it - Halo 4) on 360.
In this way MS IPs get noticed by the more mainstream gamer but the better versions are all to be found on 360.
Will it happen? I doubt it but if MS truly sees the Wii as a 'feeder system' or 'bridge' system then it could happen.