Looks like Cooper Island has the brewery up and running and started serving beer March 20. Nothing on their web site, but they posted the following on facebook.
https://www.facebook.com/Cooper-Island-Beach-Club-320796570227"We have 3 on the go at the moment:
Larger (Malt: Pilsner, Hops:Seasoned herbal character, grassy/floral).
Ale (Malt: pale & munich, Hops: Seasoned herbal character, grassy/floral).
Bitter (Hops: Crystal & Pale, Hops: Challenger, fruity & spicy, earthy."
Running a brewery in the islands is tough. Last I heard they were working with the brewer at Ft. Christian Brewpub on St. Croix, with a plan to train staff on some of the less technical work.
Cheers, RickG