The game will definitely have level scaling, but I wish it didn't.
From my experience level scaling either ruins the game (Oblivion), or doesn't matter very much (BG2). I can't see how level scaling ever really improves a game it's used in, but maybe I've just been traumatized by Oblivion.
Still very excited for PoE though, as I'm sure that Obsidian will scale in moderation.