One thing we can be pretty sure of is that G will want Brad back in the line up. Whatever you think about his strengths and weaknesses, I am pretty sure that every player genuinely wants his influence back on the bench and in the dressing room.
If he needs to be eased back into action is only dependent on whether he is able to get up to match fitness quickly, if the hand isn't 100% he wont play, cos he will be made to fight on his return by other enforcers, you can depend on that. Whichever line he goes back onto, I really cant see him rotating with Sam or Ben for more than a game or too, he will retain a fixed spot on the roster I am sure of that and I'm pretty sure he will get straight back into the 2nd line.
The line with Hill, Jay and Voth, was seen as the hardest line to match up against in the league not to long ago. I cant believe its got any easier since Finnerty came in and I cant see G wanting to change that formula. Ben, despite how well he is playing, hardly fits the plan for that line.