Pretty much any non-SMT or Trauma Center game that Atlus makes is prone to being rare within a year.
That said Atlus DID say this on their facebook page:
"So... assuming a Radiant Historia reprint COULD happen, there'd be folks willing to buy it, right?"
Whether or not they'll actually make another reprint or are just trolling their fans is another thing.
I'm just glad I got it right before it started going rare.
--
SuperNiceDog smelled us all later.