Yes, they now do dinners on the island. They set up for three dinners, but the way the island is set up, it's still a private dinner--I would say more private than a beach dinner as no one is walking around. I believe it's around $250. We met a couple in July that did it for their honeymoon and loved it. Champagne on the pier, boat ride tot he island and then dinner with private server. Contact guest services to arrange.
$240 it was last Friday and very nice it was complete with lightning show on the horizon! Bring a torch if you want to read the menu or see each other or the food tho, the tealights and candle are not that bright