I reckon they'll ask one on Henry VII and Henry VIII. If i recall correctly, last year's AS questions were on Wolsey's domestic policy and the threats to Henry VII's reign, i imagine it is less likely those two topics will come up as questions- i'd put money on Henry VII's foreign policy coming up, and a question from Henry VIII's reign as well, surely.
As for the source questions, my teacher reckons that religious changes under Mary could potentially come up, although he sounded pretty unsure. I feel like religious changes are worth looking at anyway. Good luck everyone!