Not really anyone yet honestly. Gaius would be easy for the Villains side, but MMOs don't often have many iconic and must-have characters in my opinion. Shantotto made sense before because she's easily one of the most powerful BLMs in the XI universe, and Priche was very important to Chains of Promathia. Besides them, only like 2 or 3 other characters in XI come to mind that I think would make sense.