Well, we didn't see this coming. Team Ninja is apparently collaborating with Nintendo on Metroid: Other M. It's going to "reveal a Metroid game unlike any you've experienced before", and it's both first and third person and it's coming in 2010. Oh, and Samus speaks!
We're still not sure how we feel about it, but we're keeping our fingers crossed that Samus will get jiggle tech. Don't ask us about the logistics, that's not our job.