That was me that mentioned the email from Guest Services. She actually told me April 14th... so we will see if it is indeed removed from the refurbishment list when the schedule is released tomorrow. I hope it is! I'll be there around the same time as you.
I've found that you ask GS about a refurb they usually give you the last day it's closed as opposed to the first date it's open. They word their answer to those questions kind of weird like "We expect the refurb of SM to end on April 13". To most of us we'd interpret that as April 13 is the 1st day open. To them it 'ends' on the last day it's closed. Weird.