I actually shared an Über with one of the stuntmen for SES last night. I asked him what he was doing while it was under refurbishment. He said that he's in rehearsals, teaching some new performers the firewalk and the fight choreography. Overall, I got the impression that this downtime will be pretty short, like with JP, and it will (hopefully) be open again for guests in time for Grinchmas to start in earnest.