Ellynne suggested if Kate joined the crew:
In Assassin, she'd probably be confused by Piri's behavior - I'd guess Seska, once _rescued_ from males with villainnous intent, would try to prove they're as in control as ever. So, she'd be suspicious or at least curious. Piri would try to get rid of her first, throwing the crab pin at her. Kate would catch it telekinetically and throw it back. Piri dies horribly about five minutes after she's introduced. Everyone else survives. Avon is stuck with Nebrox, his adopted grandfather.
Oh, how I would love to see that!