I'm thinking it'd take a redesign just as the 10/22 did for the magnum and 17 cal. The recoil energy is different, the pressure curve is different, the bolt needs a change, etc. If it was such an easy thing, I'd think the custom guys would be doing it, Volquartsen for example would've jumped if it was that easy and that strong of a market. That same market is the one that has the Marlin not entering reporudction too. A smart manufacturer doesn't drop what's selling strong.
I see all the "they should make" ideas all over and some...while it may seem easy and a sure thing in the head, realistically it's not so.