Robin and Brook can help him escape Black Maria, after that he either have option to try & go up again or attack someone in sight,
If he goes up, he will find Jinbe & Who's Who & i don't think Oda would draw that, that fight should be left alone
So imo Sanji will jump and attack someone, who?
There are two options, either he will save Nami from Page One or attack Queen & help Marco
However Drake is already down there & so is Chopper & other Samurai, Sanji shouldn't be there
So Queen & King it is