There has been somewhat of a breakout this season for England strikers, and I think it would be crazy to take a step back by re-introducing this has been to the team now. He's been out of the frame internationally now for so long that it really would be pointless. He plays once every three/four games for Man U for goodness sake.
Defoe, Bent and Carlton Cole have had very impressive starts and really have been outstanding. Heskey was involved throughout qualifying and Capello knows what he will get from him and considers him to be very valuable. Crouch has consistently performed for England for a good while now. Then you have the likes of Agbonlahor and Walcott who can be very dangerous of the bench late in games when defenders start to tire, with their pace and unpredictability.
Taking Owen would be a silly move imo.