Board Thread:False Info and Speculative Discussion/@comment-121.218.42.29-20140819160551/@comment-77.2.182.177-20140819165652

Technicaly she already has "felt" Peters dead. He did die in S1 and it took several month for him to be revived. A banshee can only predict/forsee dead, not (re-)birth so I think she really doesn't know that he's alive again. Kate never died, just appeared to be dead (S4 E1).