If 7% of all bitcoins really are gone then the price rise would be more like 30% because the 7% were from the actively traded float, not from the several million hoarded and locked away in Arctic-cold storage.
You seem to be forgetting that there were also a lot of fiat afloat at mtgox that was meant for BTC. BTC will lose that fiat, and probably any new fiat that would of came from those who owned it.
the fiat can be just Ctrl-P 'printed' back into existence ... the bitcoins, they are gone forever ... chew on that genius