When I stayed at the POR in September, the boat captain had indicated that they expected the rehab to be completed by early summer late spring.
When they closed the resort last year it was indicated that both POFQ and POR would be rehabbed and that the entire process would take 2 years. Hopefully that means one year for POFQ and one year for POR.
After 9/11 the resort was closed due to low attendance at WDW, then it reopened in 2002. The resort is not closed now because of low attendance, but due to the rehab.