I guess that salvage would be a first option as the main gash is exposed, but as has been pointed out, if the ship is resting on two "pinacles" it could break its back , or slide into deeper water. An on site break up would be very messy, I imagine.
Personally I think their best bet is to try and refloat it then tow it out. The hull damage is out of the water so that should be relatively easy to patch. Then expelling the water from the ship, in such a way that it comes upright again and not belly up. But the longer they leave it the harder it will be.
One thing is for certain though, and that it will never be put back into service. Just look what happened to the herald of free enterprise
I have a feeling that ship will not be refloated in time to avoid it breaking up further, probably assisted by a Mediterranean storm. I believe the insurers will decide to cut their losses very soon now, bearing in mind the ever increasing costs facing them and the lengthening time the vessel has lain in a capsized state. Scrap metal value may be their only recompense. TC.