I would love to see the other four survivors (who are still alive) re-enter the story in some way. Grant, Satler, Lex, and Tim... The former two could definitely have an angry "we frikkin' warned you idiots!" role, and a lot of us were initially hoping Chris Pratt's character in JW was a grown-up Tim (even though Joseph Mazzello done growed up pretty good:
http://www.heroesandheartbreakers.c...rticles/2015/June2015/Joesph-Mazzello-225.jpg
I would be quite happy to see him shoulder-to-shoulder with Pratt in any sequels. Maybe having inherited his granddad's stake in the company and coming in after the mess of what just happened.
--Jonah