I am surprised if the RT doesn't have a future. The RT has met my needs wonderfully. The size meets my needs and capabilities are exactly what I need them to be. I don't require the greater capabilities of the PRO, and I don't want to pay for them. I'm not saying I won't, but I don't want to.
I don't want to move away from the original form factor either. But MS still has to clarify what it intends to do with Win10 and Office-related updates to the RT line. I see articles on one side screaming "MICROSOFT IS TOTALLY ABANDONING WINDOWS RT HA HA" and then (the MS blog or the Win10 event Q&A) saying "we're working on something." One thing I've learned in the Surface releases is to not trust the media entirely, LOL.