The newspaper claims that Richie wants to pursue other roles in films and television, as well as starring in major stage musicals.
The actor originally hoped that producers would leave the door open for him to return, however EastEnders chief John Yorke has warned that Richie's soap future may not be so certain, should he decide to leave after his contract expires in November.
A source told the newspaper, "Shane has taken the bold step of walking away from the show to carve an acting career. The reality is he's not coming back.
"As much as he loves Alfie, he is very ambitious. But Shane was hoping to have his cake and eat it. He thought bosses would let him come back when he felt like it. That plan has backfired."
Shane has apparently signed up for two musicals, two Hollywood film appearances, and is also in talks with the BBC and ITV over other television roles.
Phil Dale, Shane's manager, explained, "Shane is sad to be leaving EastEnders, but looks forward to future projects with the BBC and others."
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