i don't see safedice paying for this win. They will claim they were hacked or they'll close down the site.
But, i truly hope i'm wrong.
Good old "sorry guys! we've been hacked" won't work here. Either the operator will disappear with funds, or he'll pay the player promptly. I hope for the latter. "Good" thing, from operator's point of view, is that bankroll was crowdfunded, so the investors will bite the loss (especially those on 10x kelly). So if owner had only small own investment (and set at conservative risk option) then there's no really a reason to make a run (assuming site is solvent).
ps. anyone knows whether huggermugger is active on bitcointalk?
I think the most likely scenario here is that the owner takes more than a couple days to investigate the account and the bets.
He/she will then probably pay the majority of the bet out through cold storage funds and the rest through the hot wallet after a bit of time.
Personally, I don't think there's currently enough in the hot wallet to cover the remainder after the cold storage is drained, but in my personal opinion, I think all the winnings will eventually get paid out and the site will resume to normal (albeit with a much smaller house bankroll).
This is of course all from personal speculation, but I wouldn't recommend making large investments or deposits into the site until the matter is cleared to avoid a ponzi type distribution of the funds.