I would be shocked if they waited all the way until the end of June to pay it out. I'm betting they will force it out sometime in April.
Welsch later tweeted that FL State law requires them to not pay it out until the final day of the meet. Although I assume it will be hit long before that.
If it isn't hit until then, that pot would have to set some kind of record. It would be a lottery-like frenzy for even non-horse players, I assume.