As he states, who would buy WotC? You can dethrone the 800 lb. gorilla but you can't buy the 800 lb. gorilla.
Sure you can. You just gotta be the 2000 lb. gorilla to do it.
Who would buy it? Anyone large enough looking for IP - Amazon and Disney come to mind. Hasbro's Market Capitalization is something like $12 billion. Disney, Netflix, and Amazon are all over ten times that. They could buy it, if they wanted.
However, Hasbro has never been seen to sell off IP like that, even when they cannot capitalize on it - giving profits to another company is anathema. Unless...
...let's think some really weird scenarios...
Suppose Hasbro isn't intending to sell off the company lock, stock, and barrel, but recognize that, while they own it, they are unlikely to be able to capitalize on the value of the brand. For all that it likes to make money off its brands, Hasbro's actually not terribly good at making its brands into successful media franchises - let's face it, Transformers and GI Joe moves have basically stunk, though the former at least make some money.
"If you love something, set it free.... mostly." Imagine that Hasbro
spins off WotC into its own company. It keeps 51% of the stock, and puts the rest on sale to raise capital for the released WotC. With a capital infusion greater than Hasbro itself can inject, and without the entanglement of Hasbro leadership, WotC can go off and develop itself, and Hasbro reap the benefits in terms of the stock value, if any.
That seems to play against the notion it's coming up on the auction block. Also, the lawsuits (regardless of merit) are more of liabilities than any existing contractual obligations were, so they don't add value to a potential sale. Rather, the suits drive down the price.
That depends on when - if you sell while the suit is pending, it is a liability. Resolve the suit, and it becomes past business.