I left MP in 2013 and don't really know what happened when they dumped the M1 intake line.

The interlocking "BB" logo on the intakes told the story as to where they were cast.

https://buddybarcasting.com/

It wouldn't surprise me if the tooling was stored there, probably free of charge.

Someone smart and enterprising, with the considerable resources to do it could probably
do the same with the buddy bar cast intakes as what Callies did with the Dalton Foundry blocks. If the tooling exists, parts could potentially be
made again under a license agreement.

Of course, there would be no development and everything would be forever locked into 2001 or whatever year it was they last revised everything
but I think folks would still buy the parts if they were available and not overpriced.