As for Bob, I think he'll borrow him some, but I think the separation is permanent. But maybe I'm wrong.
I really hope that separation isn't permanent. Bob is one of the best characters in the series. Diminishing his screen time and presence will make me sad.
Also, it make sense Winter would be stingy. Mab likes giving Dresden what she considers the bare minimum in usable resources relative to the task at hand, and half the time, her "gifts" are barely recognizable as such, like making him forget that fire was a thing in Small Favor.