If first party and support for online games were to accompany the new online interface, then I'd be all for it. I've love it if Wii sports was re-released with support for online versus and multiplayer.
Unfortunately, Nintendo is extremely fiscally conservative and only spends money when absolutely necessary and very lucrative (that's why there aren't any Mii updates or WiiHD's).This means the only way they'd even consider restructuring their interface (like M$ did in NXE) or modernizing their approach to online gaming , would be if they started losing tons of marketshare and spiffy new colored Wii's had proven to be ineffective.