The Denmark Under-21 international is due to return to the Madejski Stadium, but Rovers chairman Nick Higgs revealed the club are on the verge of securing his services until May.
"We are close to completing a deal that will keep Mikkel Andersen at the Memorial Stadium until the end of the season," Higgs told the club's official website.
"An emergency loan is being done this week to cover the Wycombe game (on Saturday), and the plan is for him to sign a standard loan deal on Monday which will see him stay with us until the end of the current campaign."
Source: Team Talk
Source: Team Talk