Shaun Wright-Phillips insists he is happy again at QPR after turning down "offers and opportunities" to move in January.
Blackburn goalkeeper Paul Robinson has told Sky Sports he will leave the club this summer and could move abroad.
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."