Buusatan94 It's possible they head over to Elbaf, because anything's possible with Oda.
However what would they achieve there apart from a transitory arc? All the fighting is happening on EggHead. The only missing piece is Shanks, wonder where he headed off to.
Both BB and Shanks play it safe and don't enter this fight at EggHead yet. Isn't it interesting though that both the giants and BB knew about the skirmish and had time to get there and yet Dragon is still sitting ducks?
My point is all the fighting that could happen at Elbaf is already happening at EggHead.