User blog comment:Omega natsu2/Chapter 384: Surfing Lucy, Predictions./@comment-24.52.205.15-20140508032615/@comment-7418318-20140508070005

That's a definite no for four reasons:
 * 1) It was Doriate who cast retrogression magic, not Minerva. And Doriate is most likely dead.
 * 2) Retrogression doesn't actually make the target physically younger. It reduces their magic and strength which has the side-effect of making them look younger, but doesn't actually change their age.
 * 3) Retrogression isn't permanent. The moment the caster stops to channel the spell, the victimg reverts to it's old self.
 * 4) Sensory Link Magic only transfers feelings, not magic. Unless Meredy learned some new tricks we don't know about yet, Retrogression wouldn't be transfered through the link.