I would ordinarily say that the God's Knights' fights are over now, and we only really have Imunko left to deal with.
...BUT...
The part that's bugging me right now is that Killingham is tied up. I...don't see him staying that way. I doubt the Strawhats are going to hang onto him. I don't think this will end up being like Caesar, where they're dragging him around as their prisoner for a few arcs. If Killingham was free, I'd probably say him and Sommers would just beat a hasty retreat with their tails between their legs. But, with Killingham tied up, and still a little cocky about it, I think we might have a twist coming.
I guess Shamrock COULD still show back up. I'm not totally convinced that he's enough to turn the tide on his own. But, if Shamrock AND Garling showed up, with Garling itching to show off his new "Yokai" form, maybe that'd be enough to make things interesting. But, honestly, if Shamrock did show back up at this point, I think it'd be to ask Imu to come back to help deal with the situation at Mariejois. I feel like Shamrock would be Imu's excuse to make a quick exit, rather than as backup for this battle.
But, I think a more likely scenario could be that Imu can activate some sort of "super mode" transformation for the God's Knights. Something that's slightly different than Domi Reversi, but something that gives Sommers and Killingham a second wind. "Monopoly-Theism" or something like that, to tie into the religion and board game themes Imu has going on. That way we can give the Strawhats something to do, while Luffy and Loki deal with Imunko. Maybe revealing Imu's "Dragon/Yokai" form at the same time? I just feel like fighting Imu is a big enough deal for us to enter a "second stage" of this boss fight. It might not last very long, but I could see Oda doing that, just for the spectacle. And to keep the God's Knights as a somewhat credible threats for arcs moving forward.
I don't know. Maybe Oda just really is ready to end this arc ASAP. Maybe Imu is the only fight left. But, one way or another, I feel like Killingham is probably going to get rescued. So, there might be ONE other fight other than Luffy and Loki versus Imu. Maybe Sommers ends up rescuing Killingham and gets a few shots at the other Strawhats at the last minute? Or maybe Killingham is just literally able to pull himself together, later. I just feel like something has to be done about that little plot thread.
So...maybe or maybe not? I could see it going either way, honestly. But, I feel like there is still a slight chance for Sommers and Killingham to regain a little bit of their lost gravitas. We'll see.