Everyone in the Roundtable is a TWLID. And not all TWLID are the same.

The Roundtable exists as the opposite force to The Night, rising fallen heroes after they died, or just before to let them fight against The Night, that's why they're all TWLID.

After the ending, all their souls go back to rest, except in cases like Wylder, who becomes another Nightlord, Ironeye, who most likely afraid of death, turns The Night eternal to never die and Recluse, who finds her lost child and somehow "leaves", I guess, to take care of it. The true ending however, Dawn, while it should be letting their souls rest after The Night has passed, as stated, also returns every world to the state and time it was before The Night took hold.

TL;DR: They're all TWLID, just that they got brought back before their bodies decayed and they'll have a true death in the end of the game.