Haye should have fought Vitali instead of Wlad first time around .

More fights in the heavyweight division can only be good news.

He "bottled" it mentally against Wlad.

Even if he beats Vitali he has accomplished nothing in comparison with either klitschko brothers.

Would be interesting to know more about Hayes fitness and injury status.

Just a flash in the pan, If he gets a win then faces an ageing Wlad again, he will retire from boxing and go back to the celebrity circuit which deserted him after his no-show against Wlad.
His credibility is still shot in the UK, and that is the only reason he is fighting so he can go on the celebrity roundabout again.