By name, no, but by all his explanations on balefire... RJ sure confirmed Be'lal is gone.

There would be no point to bringing him back. Why send Taim to Rand, why bring back Aginor to place among the Asha'man if Be'lal's soul was available?

Be'lal was barely characterized. A sub Moridin as "spider in his web", another traitor like Sammael and Demandred, but without the over the top hatred either. Be'lal is just..lame. Jordan needed the "other generals" as "cannon fodder" but also to build a mood of rivalry between them and so keep the Forsaken split as "clans" early on. In the LB, he no longer needs this. The Chosen Generals competing and moving against one another was all well and good as backstory in the WOS, but in the actual LB the readers want the heroes to triumph over these foes, not Be'lal and Demandred to go at each other's throats while the Light finish both off. Jordan got rid of the Generals one by one, gradually building the mystique of Demandred, to bring him out to lead the LB. Demandred will be given the chance to bring together the various components of his "army" (he's literally "divided to rule" for the moment) but sooner than later he will prove he is a terrible leader, as this army will prove unable to work together for very long, before hatred, ambitions etc. plague it and make it collapse.

I'll be extremely surprised if any of the Chosen who've fallen resurface now, two third into AMOL, when the game is essentially played out. Even Graendal has been dealt with, IMO (she might have a cameo and all, like Mesaana might be mentionned again, but plotwise these two are done).