We visited a month ago, stayed at Beach Club but hung out at Poly a lot. The main building looks great. The construction in the front part is all done, and downstairs on the left (as you enter) has a great new store with funky Tikis that are great for photos. Captain Cook's looks as it always has; evidently the work there has been postponed a bit. The only area boarded up is in front of Captain Cook's, right downstairs from 'Ohana. This is where Captain Cooks will expand, perhaps.
We did not notice any outer buildings "boarded up" from the pool or beach area. When they do a building it is very discreet, with coordinating paint on the construction fencing around the work area. I do not think any work going on will be very noticeable. We thought everything looked GREAT. When all the new rooms are done we want to do POLY again! Hubby is holding out for those cool TV's...