I seriously doubt that there will be any further iPhone, etc, support unless it's through another plugin. The problem is that staying ahead of Apple's proprietary software would suck up time that could be spent on more essential things. If you need a program that can do that, you might try Media Monkey.
Also, Apple is just splitting iTunes into multiple programs. They may want to get their new apps working smoothly on their own systems before porting them to Windows, but I have no doubt they'll show up soon enough.