The announcement that Brandon Routh will reprise his big-screen role as Superman for the Arrowverse's "Crisis on Infinite Earths" is something fans have hoped for since the actor joined Arrow in 2014 as Ray Palmer, better known as The Atom. However, it gets even better, as actor Tyler Hoechlin, who portrays the Man of Steel on Supergirl, will also appear in the crossover, with Routh donning the costume of the Superman from DC's 1996 comic Kingdom Come.

It's gearing up to be The CW's own "Into the Super-Verse," but there are a few notable Men of Steel missing. While it's highly unlikely Henry Cavill will swoop in for a cameo, there's one Clark Kent who would be perfect for this crossover: Smallville's Tom Welling.

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Ever since the Arrowverse began toying with the multiverse concept, viewers have wondered how long it would take before Smallville, the beloved 2001 to 2011 television series, becomes canon. Last year's "Elseworlds" raised hopes, as it featured a musical interlude of "Save Me" by Remy Zero, the Kent farmhouse from Smallville, and even a cameo by Justin Hartley's Green Arrow costume. Additionally, Arrow star Stephen Amell set tongues wagging when he posted an image of himself with Welling and Michael Rosenbaum (Smallville's Lex Luthor).

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For those wondering, Smallville is owned by Warner Bros. Television, and its final season aired on The CW, so the groundwork is already laid and rights shouldn't be an issue. The only question is, do the original actors want to reprise their roles?

Welling has never ruled out the possibility of playing Clark again. "There's people who would like it... there's people who don't like it, but I will tell you that no one has ever actually asked me to do it," he said in 2016. "So, I don't know. It would be kind of odd. I don't know who he is at that point. He would obviously be Superman."

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At 2018's AwesomeCon, Welling mentioned he wouldn't mind reprising the role of Clark Kent in animated form, leading many to believe a project might be on the horizon involving Smallville and its central cast. Of course, there's been whispers about some sort of reunion ever since the series ended in 2011.

The biggest hint that Welling could be forming some part of "Crisis on Infinite Earths" is a report from earlier this year, when he said, "I will be on Arrow next season."

Smallville Season 9 Clark's Neo Phase

He didn't indicate the extent of his, or who he would be playing, but if he isn't Superman, it would be a lost opportunity.

One thing to bear in mind, however, is that Welling reportedly turned the chance to appear as Superman on Supergirl. It's no secret he was exhausted by the end of Smallville and wanted to shake off the typecasting. While most fans would love to see his story arc continue, Welling holds other ambitions too. His casting would've been the ultimate fan service, but it also would've setback all the work he'd done since to be seen as more than TV's Superman.

If this crossover is a one-time deal, it's a different story. Welling could suit up, pop up -- along with the rest of the Smallville cast -- and send fans into absolute delirium. By the looks of it, The CW is going for broke with "Crisis on Infinite Earths" and this could truly be the live-action Multiverse crossover that everyone wants to see. Hopefully, it includes Welling in its plans as well.

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