However, to me Steve Job's "visionary son" is not Forstall but Ive. Ive embodies the values that Jobs had regarding innovation (not surprisingly he was one of Jobs' best friends and spent the most time with him of all of Apple's executives).
Personally, I think it's possible Ive can be underrated. Sure, people value his hardware design. But can he design software interfaces? Most people would doubt he could. Yet this is the major task Ive is now entrusted with.
I'm not sure if Ive can do software design well, but I wouldn't be against him. I think he's got years of innovation experience and understanding the essence of simplicity and user experience.
I'm hoping Ive can surprise us all, and lead a resurgence in Apple with some killer new devices. I'd love to see him make a watch (or pendant) that connects with your phone but allows you to access key features. Of course there's also the TV we've been waiting for (and the backend services).
I also think Apple could get into household/home devices (ie., the Nest). It could be interesting if Apple bought Nest and expanded into the automated home.
Lastly, this is a far-fetched dream... I'd like Apple to buy Tesla. It would be pocket change for Apple ($3-4 billion market cap, but probably more to buy them). But could open up a decade of huge innovation that Apple pours into cars. Tesla has a great start, and Apple would just get behind them. Imagine iOS integrated in your car. That would be awesome.
I'm convinced that Tony Fadell is merely proving the automatic home market to Tim Cook, but wouldn't mind being back in the fold, maybe even replacing Scott Forstall.