Paget Brewster and AJ Cook returning to Criminal Minds. . .?

Does anybody have any theories as to how the are going to explain
Emily Prentiss' non-death to the team?

Is she going to come back with the boy?

Does this mean that she/they are going to catch/kill Ian Doyle?
Because he escaped after "fatally" injuring Emily.

Just want to know some other peoples thoughts on how the seventh
season is going to go. :D