Toshiba is basically bust, and it has been broken, in fact, by a nuclear project. So the idea that it won’t want to get rid of Moorside for whatever value it can realise, seems to be very, very unlikely. They will try to sell it, I’m not sure that they will find a buyer.
What there is a real risk of here, is pouring good money after bad, because the headlines would be so awful if they just said that they were giving up.