Yeah, the way this is going I highly doubt BM stays entirely on their side. Shes just super chaotic and Kid is probably going to do something that instigates a further fight.
Very clearly though Nami is going to get Zeus now, it was cool that Law teleported Zeus to keep her from the roof. Big Mom is going to disown him and he'll go back to Nami.
What makes me nervous though is hopefully that wasn't the extent of Usopp's "fight". With Nami getting Zeus soon, I just hope both Ulti and P1 aeenr done. It was a few attacks sure, but P1 never really showed off his hybrid outside of 1 attack to Sanji.
I'll be patient though, hopefully they are fine next chap