Above is a post from September on this thread implying upper 28's were being renovated. TP studios end in 18 and 28.
IF the upper 28's have been done ( I am just back but didn't notice), then by May likely all 28's done with half the 18's under renovation. So by May, 16 rooms, 4 under renovation, 4 not renovated (ending in 18), 8 renovated (ending in 28). Since most will request renovated rooms, I think you have about 50/50 odds for a renovated room .
All hypothetical. If you need a guarantee of a murphy bed rather than a pullout queen couch, most
dvc resorts now have them and would give you a 100% guarantee. AKV, OKW I believe are the only two DVC resorts left to get them.