I'm pretty sure the phone won't have the split view feature as that seems to be a feature only available on higher end Windows versions (RT and Pro). I'm guessing we'll get a pretty Vanilla Windows 8 installation with some minor Nokia enhancements like Picture Show and maybe some updated Camera features. I would love to be surprised and see something totally new but that doesn't seem like WP8's current mode of development. Hopefully the Nokia acquisition will speed up the rate of change.
I don't think so. This is really just going to be a large smartphone, not a real phablet. At least in my opinion, no Wacom stylus support and no apps snapping = no real phablet. And this is not Nokia's fault, it's Microsoft's! Again!! They had a hole working year since they released WP8 and they couldn't add those 2 essential things to it. One wonders WTF are they doing.