I really do feel that Deus Ex: Human Resources is a worthy Deus Ex game, it has its flaws, as did the original and while it doesn't quite realise the freedom of the original it is the closest games have come in a very long while.
I am actually hoping for another one, with no cutscenes (do they look any good on consoles they look like mud on a PC?), avoidable boss fights (or at least boss fights with characters that have some emotional weight), and more vertical alternate routes (this is the only thing that felt overtly consoley to me surely after Assassins Creed console gamers now look up?).
I don't think the game quite works as a prequel because every augmented individual seems more advanced than Gunther and Anna but I can happily think of it as a re-boot with references to the original.
OT: I really do prefer the Half Life style exposition because I become an actor in the scene not just a viewer.