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Do you have a source for this, cause this is awesome if its being reprinted. However unless there’s a rule change I am unaware of, not just any PW can be your commander.
Interesting article from a little while ago about the previous leaks https://articles.starcitygames.com/magic-the-gathering/pinfinity-fnm-upgrade-kit-reveals-possible-jace-the-mind-sculptor-in-bloomburrow/
I got it out of a judge group, but there are socials on the image that looks easy enough to trace.
That the same Jace is in the pinfinity link you shared, it does seem pretty legit. And the art on the officially shared pinfinity badge(?, I have no idea what a pinfinity is) looks to be the same artwork as on this version of the card.