they still haven't done ep 3? tbh i don't think hl would work again in its current form, it does need more up to date features if it wants to compete with open world FPSRPGS, while not amazing i just finished deus ex HR again and it really felt like playing HL with stealth mechanics and a talent tree. you know, go from here to there killing things and solving puzzles.
ah well maybe they were just waiting for the next gen consoles who knows.