The prolific goalscorer suffered an ankle ligament injury in the goalless draw against Wigan at the end of February, after scoring 11 goals in 28 appearances earlier in the campaign.
Villa are currently lying 15th in the Premier League, just five points above the bottom three, and Bent has admitted his frustration at not being able to help out.
||Aston Villa can be backed at 11.00 to be relegated from the Premier League with William Hill
"I wish I was able to play and help Villa get out of this situation," he told The Mirror.
"With me getting injured and Robbie [Keane] going back to LA Galaxy, we lost two strikers at the same time.
"When you see the lads going out to training and playing in matches, it gets difficult and you wish you could be out there helping them out.
"But I have kept my spirits high and hopefully I will be back before too long."
Villa face a busy Easter period with a trip to Anfield to take on Liverpool on Saturday before welcoming Stoke City to Villa Park on Easter Monday.