It probably won’t be JBJ.
He was brought in to improve outfield defense, and he has done that. They probably didn’t expect him to hit all that much, and he’s done that too.
Duran should stay. But unlike Bradley and Hernandez, he has options. And demoting him allows the Sox to keep everyone.
My choice would be Kike to 1b, Duran in CF, Bradley/Refsnyder in RF and Dalbec (who also has options) to Worcester.
If the Sox release JBJ, and an OF gets hurt, who starts then?