User blog comment:Ziwantan/The 5 most powerful sorcerers in Misplaced/@comment-1635895-20120207111003/@comment-64.247.103.100-20120207173418

On AskGreg someone once asked if other members of the Fearsome Five would appear, and of course got a "No Comment" response. Mammoth, Shimmer, and Psimon have all appeared this season, so that only leaves Gizmo and Jinx as the most iconic members that have yet to appear. That roster was the one who battled the Outsiders in 2004, and Shimmer's design in YJ is based on her 2004-onward design.

Since Greg wanted the villains in YJ to be modern and cool, I have no idea how he'd want Jinx or Gizmo to be handled. Shimmer and the Terror Twins already have the punk/rock style, so I doubt Jinx would have a similar style.