The sellers will soon realize they cant withdraw their real money and must buy bitcoins again to avoid the MtGox bankruptcy, which would make them lose all their real money 
So just hold on and see the price go up again
So just hold on and see the price go up again
Why does this seem to be such a big issue?
Sure you can't withdraw Fiat at GOX, but you can trans your coins to somewhere like LocalBitcoins and sell at 3-8% ahead of GOX... its not hard!