I see little argument for nerfing GS that doesn't apply even more to QGJ. The latter has similar assist capabilities, can do huge damage with assist, and combines it with game-leading speed enhancement, and a dispel with ability to give the entire team Offense Up. The only thing that keeps him from being a no-brainer on every team is that he's a Jedi.
That said, I am quite confident GS will be nerfed, especially if they ever add any more Geonosians. Because if he were on a team with 4 others of his type, he'd do insane damage.
Of course, if they would fix the excess damage relative to defense/health then most of these issues would go away.
BTW, your poll options are weird and will negatively affect the results you get in this poll.