I'd prefer they make a new engine for the next halflife heh. But ultimately I'd like them to do new sound algorithms.. original half life raised the bar on sound.. half life 2 didnt bother much with sound improvements.. I hope half life 3 will bring about the need for a seperate sound lab to recreate true 3d audio
I prefer that too but its unreasonable to think that they programmed for years and think they wont use it for another game. I read an article in which somebody from Valve said that they produced the engine so they can just insert a new brand of technology like that. So, it would be still the same engine but supercharged.
I enjoy the sound but i do agree that alot of it was a rehash from the original.