Reading pair Sean Morrison and Jordan Obita have both signed new contracts at the Madejski Stadium.
Ipswich defender Aaron Cresswell has signed a two-year extension to his contract.
Evans, signed by Tommy Wright during his spell as caretaker-manager towards the end of September, was due to remain at the Proact Stadium until January.
The 19-year-old made five appearances, two of them starts, in all competitions during his time at the npower League Two club.
Spireites boss Paul Cook said: "I'd like to thank Micah for coming to the club and getting some first-team experience.
"Due to the lack of opportunities, we feel it's beneficial for the lad's career for him to go back to Blackburn."