This arc is a MESS
Now that the Gorosei are here, the matchups are pretty hard to predict.
Luffy vs. The 5 Elders = Impossible
Luffy vs. Kizaru = Possible, but Kizaru's condition is suspicious
Luffy vs. Kizaru and a gorosei = Looks absurd, but possible
Dorry, Brogy and the AR will come
Not all of Gorosei will fight, since their goal is to stop the broadcast.
But the source is in the Labophese, which Luffy knows is where the rest of the SHPs are, so he won't let anyone get there.
The AR is really the key to everything here, if he can stop the Gorosei, it'll be okay, but if he can't, it'll be a real mess, since the SHPs are far from escaping the Labophase.