iZombie boss Rob Thomas has "basically" known from the beginning how the series will end

Variety

"I don’t know that we had all the details, but I’ve known the answers to the big picture questions," he says as iZombie tonight kicks off its fifth and final season. "There are certain things I didn’t know at the beginning, like the notion of Ravi and Peyton being a couple, for example. We didn’t think about that going in — it was only watching those two on the screen together that that became interesting to us. Some of those details that have happened along the way are things we’ve picked up, but in terms of the big story of Liv, the zombie outbreak and how it was resolved in Seattle, that we’ve kind of known the whole time." ALSO: iZombie fans should brace themselves for major final season deaths.