Steven Moffat wants to revive his popular BBC show Sherlock, but he might have to battle Marvel for his stars.

Moffat, appeared on BBC’s Today program promoting his debut West End play The Unfriend and talked about a second season for his BBC/Netflix hit Inside Man, which stars Stanley Tucci and David Tennant, who worked with Moffatt on Doctor Who. He got to talking about future projects, including a fifth season of his acclaimed show about Sherlock Holmes and Watson set in modern-day London.

Sherlock, which starred Benedict Cumberbatch and Martin Freeman, wrapped up its last season in 2017, a fourth season that ended with Holmes confronting his evil sister and villain Jim Moriarty (Andrew Scott) in an episode titled The Final Problem. Moffat said he would “start writing tomorrow” if stars Cumberbatch and Freeman would return.

“They’re on to bigger and better things but, Martin and Benedict, ‘please come back?’,” joked Moffat. Cumberbatch is much in demand, of course, as Marvel’s Doctor Strange, among many other projects including his Oscar-nominated role in The Power of the Dog in 2021. And Freeman is also in the Marvel family, playing CIA agent Everett K. Ross, most recently in Black Panther: Wakanda Forever. He also currently stars on Breeders, the FX comedy he co-created, which was renewed for a fourth season in July.

Neither actor has commented on whether they would consider leaving the multiverse in order to occupy 221B Baker Street again.