Shipboard fires are no sweet picnic. Having done a couple of them, I can appreciate the hard work the firefighters had to go through to deal with this. According to the article on Martime Matters, up to 70% of the ship may have been damaged by the blaze and this does not bode well for the ships future. Metallurgists will have to examine the hull to see if it's still usable and that's only the start of the odyssey. I would be greatly surprised if the hull doesn't end up having to be scrapped.
At 113,000 tons, this is not a small vessel and whatever course is decided on, it's going to cost big time. Whoever underwrote any insurance on this ship can't be happy.