I think you are wrong.
With a trusted new CEO, like gmaxwell or antonopoulos MtGox would be far more worth than just 300m.
It would be the easiest way for investors to get hold of a major exchange with high enough volume.
I agree. But I am more conservative, thinking there are only less than 30 people in the world who has the reputation to buy MtGox and keep it running.
My speculation: This personage should bid with $1, Mark is too greedy to agree, the deadlock goes on for a month, and this personage decide the brand's reputation is further damaged beyond redemption and give up bidding, Mark capitulate and agree to sell for $1, but it's too late, then he files bankruptcy.