It's happened around the league before and sure could happen again. Wouldn't be horrible on the Twins to do it, especially if someone like Rooker/Austin/etc. force the move.
Would Cron be the most expensive arbitration termination pay case ever? Emilio Bonifacio got $574k, which was 30 days termination pay on his $3.5 mil contract because the Royals cut him before March 15. That would be equivalent to $787k on Cron's $4.8 mil contract.
But if the Twins waited until after March 15, presumably necessary for "Rooker/Austin/etc. to force the move" via spring performance, it would be 45 days termination pay, or $1.18 mil.
And that's only if he's cut in spring training, and never sees a day on the regular season roster. Once opening day hits, the salary is 100% guaranteed.