No doubt it will be another situation as was with Threepio. Everybody had Teebo and Scout at 7* but they were the worst characters to use. Instead the event is ridiculously hard without Logray who is one of the hardest to obtain.
I imagine given there will be so many people (like me) with G12 Geo teams out there thanks their fleeting fleet meta, I'm guessing Geos can be ruled out... This event smacks to me of zGG and his droids at G12 and or another release to come on May 4th or something similar.