Yes, Nusajaya will be a wonderful retirement place.
By 2030, 900K of SG population will be above 65 and the HSR shd be built by then. They will not be held hostage by the sky high ppty prices in SG. I know I won't !
Yes, the whole area will buzz and all the developments will benefit in the long run. Where else in JB can you find an enclave with 2 marinas, a CIQ and top end hotels all within walking distance ?