Most likely they'll be incorporated into Cortona..... AI is what EVERYONE is working on these days, and might even be the power behind most Mobile Devices. won't be about iOS or Android, heck even QNX might one day power a phone, that uses some AI Service for the interface....
As for BB10, I'm sure there is some sort of contract in place to allow the continued use of their service... but not so sure those that think buying five spare Passports is a good idea, will be too happy at some point in time.