LTNman - my answer to that is whether there are extra gates to hold then bus passengers to remote stands, service road or not, or is it just a plan to hold the aircraft remote then tug back, I think not. I think next summer things will be much the same except a few more A321s hence stand changes.
As for a Signature, it just gives them more space for now still using the "Pond". Ok prime time summer when VVIP drops off, they can squeeze a few charters into there but again remote gate issues.