McLeod, the club's all-time leading goalscorer, re-signed for the Dons last week after leaving Portsmouth but was suspended - and cup-tied - for the FA Cup clash against Sheffield Wednesday after collecting a one-match ban in his final appearance for Pompey.
The striker is expected to make his second debut for the Milton Keynes side at some stage against the Shakers.
Manager Karl Robinson took a depleted squad to Hillsborough last weekend but his numbers have swelled ahead of Saturday.
Daniel Powell has resumed training following a knock, as have Dean Bowditch and Jon Otsemobor after recovering from groin injuries, while Jay O'Shea has returned from his loan spell at Chesterfield.
Captain Dean Lewington is in line to make his 400th Football League appearance against Kevin Blackwell's men.