Survivor Cagayan Preview - 28x05 "We Found Our Zombies"

And a snippet for next week's episode from a recent Entertainment Weekly interview with Jeff Probst regarding next week's episode:

EW: Okay, looks like there is going to be some fallout from that vote at Tribal Council. What can you tease up for next week?

PROBST: I can tease up...a first! Twenty eight seasons in and still another Survivor first. Good enough?

Sources: 1 | 2

Thoughts on what this "Survivor First" could be?