The 20-year-old striker's 14 goals this term have put the Tigers well and truly in the hunt for automatic promotion.
"I am contracted to Manchester United for another two-years and I can't say for sure what's going to happen there," said Campbell. "But I've come out on loan this season and done quite well for myself and the team. I wanted to get some first - team experience and go back to United a better player.
"Hopefully, with the experience I've gained, I will be able to go and compete for a place in the first team at Manchester United.
"I know that it will be difficult because of the likes of Rooney and Ronaldo, but I wouldn't be able to forgive myself if I didn't go back and give it a try.
"I'm really enjoying it here at Hull and I would like nothing more than to help them get promoted because everyone here is top class ."