Not necessarily. In his last interview, Loma admitted that currently he is still more comfortable to fight in 130 and can make that weight easily. While he still got his mission to unify the lightweight division, he still can take a detour and go down to 130 to fight the big names there without relinquishing his belt. But the question is, why should he do it ? He is currently a unified and Ring champion in his current respective class. If anybody from other class is serious about challenging him, they should go up or down to fight him, instead of expecting Loma to fight on their turf.
His name is one of the first that come to mind, yes, but that would be so dumb from the promotional point of view, that it's almost unrealistic. If ever, they would try to make it in December. And as a PPV.