I think, yes, I'd be very interested in this possibility! The missing chunk of memory in question lasts just a few days (out of millennia) but events happen during them that have huge impacts on the future of his world (though these have already come to pass and gave mostly been resolved as of the canonpoints of some of his castmates).

In fairness, about how many normal regains/pieces do you think it'd take to reclaim those memories here in Reverein if he actively worked towards unraveling the mystery?