We will try our best to restore the system by Monday
in 48h the price will change way to much and many ppl will take unnecessary losses (that you have to compensate)
restore the service today and block any new position to be open
You are assuming that these restrictions are trivial to set up in a reliable fashion. I doubt it.
But I wouldn't worry too much, the price is relatively stable. Bitcoin will be fine. Bitcoinica, I don't know.