Here are some possible scenarios and food for thought regarding book 7:
- Snape dies defending Harry and he is then protected all over again
- Nagini is an Animagus – haven’t quite figured out who he is yet
- Regulus Black is not really dead – maybe he is actually Nagini and Voldemort is punishing him
- Aunt Petunia dies protecting Harry and he is then protected all over again
- The Dursleys go to Harry for protection
- Maybe Sirius isn’t actually dead? What is the deal with the veil?