I've said before, Metro has the potential to be a great HTPC interface. Icons for LiveTV, Guide, RecordedTV, Music, Videos etc, all accessed via a remote control, but MS don't really seem interested in this anymore. If MC itself isn't getting any MS love in 8, then unless you can create links in Metro to entry points in our existing WMC 10' GUI, it's gonna have to be some smart 3rd party that does (or tries) this.
Can anyone actually confirm whether a standard MS RC6 WMC remote control (or compatible) actually works with Metro? That would at least be a starting point.
Otherwise, we'll all be sticking to 7 for our dedicated HTPC's.