I don't know what they intend for future, we'll all find out when it happens.
But as for Bluetooth not being able to go too other Apple Products, again, it's because of DRM protection and the like. Apple have the iTunes store, which they use too liscence music. They have too sign agreements and the likes with the record labels that host songs there, so of course, they're gonna be super strict on stopping music and the like from being shared.
I get that it ***** for some to not be able too share things through bluetooth (honestly, haven't noticed or cared about it since I finished highschool), but companies do what they do so they can keep runnining things. If Apple allowed BT sharing, and then protected music started getting shared around, Apple would have too shut down the iTunes store, losing revenue for them, and the record labels, also meaning nobody would be able too download things from the store.
Maybe in the future they'll let us share things through bluetooth, maybe if they can get a system running that will allow only certain things (like photos, or self-taken videos) too be shared, but they'd need the cooperation of the Bluetooth SIG (Special Interests Group) too modify the way Bluetooth works for this.
If in future BT transfer is allowed, more power too those who use it in the right ways. If not, then we either sit with it, or can decide to go with an Android product.
If we get it, then awesome, i can share things. If not, then cool, I still have a phone that I actually very much like