well since both the dinunzios are in jail im guessing the top capos will be promoted. And when Limone is off off probation or house arrest he'll be back to boss
i seriously doubut it, The man is in his mid 70's i am sure he just wants to enjoy his remainig time with his family
mobsters just dont quit. He might not be boss but will still have a role
Maybe i personally don't think so though he's nearly 80 and was nearly jailed again in 2010. Also as NickyScarfo said mobsters have quit before another one off the top of my head is Vincent Alo who quit in the 70s and Matty Iainello took over his crew.