There is a Pirates Dinner Theater Adventure offsite...
http://www.piratesdinneradventure.com/index.php?page=Pirates-Dinner-Adventure-Orlando-Florida
I've never been, and I'm not daring to suggest it's better than Disney's dinner theater fare or that Disney couldn't do better. But for all who are wishing for a Pirates-themed character meal, I'm just humbly suggesting this: were Disney to do any sort of Pirates themed meal, it couldn't JUST be a character meal, or else it would be compared to this thing, which is a whole show. Disney would have to do it bigger and better, and compete with this established entity.
Could Disney do it? Sure, I have no doubt they could. But the way Disney pinches pennies of late, they wouldn't. And therein lies the rub. They can't do a pirate's meal unless it were bigger than this thing, and they wouldn't want to spend the cash to make it happen.
You're probably better off wishing for another sort of character dining experience. Or, you know, going offsite
But, hey, if Disney ever started feeling like too many people were going offsite for experiences like this one, they may decide to pony up the bucks to compete.
I know there are murder-mystery dinner shows throughout Orlando, but I wonder if there is a haunted mansion-style experience. That would intrigue me. Something like Jekyll and Hyde's used to be in NYC, but based on HM.