Thanks for the comments folks, I live and learn.
I do have to wonder, like many others, what his motive is for seemingly trying to destroy value in the company that represents such a large slice of his family's wealth. Surely one of the other family members would have a word with him?
Still think he is going to be bogged down in legal stuff for ages. EasyJet are bound to fight this as far as they possibly can - they have to in fairness - which is going to slow up his plans... The lawyers will be in clover, if you want to see one share price move, keep an eye on Aston Martin's
If he is serious about starting something quickly, it's going to have to be overseas and small aircraft.... If wants to take over baby, or anything else, or start something that really would give easyJet palpitations, he should dig in for a loooooong wait in court.