I reached out they said they are "reimaging our hotel and balconies" but balconies are not going away permanently. Each wing will be done one at a time and during that phase balconies will not be available. Construction sounded like it's slated until September, and runs 8:30AM to 6:30PM.
I assume that if you paid for a balcony you will still get one. Figure we'll see pictures soon of the new railing soon. I do wonder if a new paint job might be coming, but I didn't ask.