Star Trek XI (2009); Enterprise Starship Concept
The saucer section doesn't look like much different from the original classic Enterprise, but the "streamlined" deflector dish assembly and "aero-dynamical" warp nacelles are the most prominent changes on the new movie Enterprise concept. The deflector dish looks more clunky as opposed to the simple dish-with-an-antennae designed on its predecessor in the 60s. The warp nacelle pylons are slightly widened at the ends and the stardrive section fuselage looks very reminiscent of the re-fitted USS Enterprise in 2272 (just before the V'Ger Crisis).
One thing about her warp nacelles are the visible, dorsal warp coil vanes, which was not seen in the original series. The conspicuous blue glow on the engines is a hallmark of any Starfleet warp-capable starship. Cool. Makes the ship's engines look 'energized', I guess.
STXI is said to be 'under construction' and is due to be out on the silver screen in May 2009. I was slightly disappointed to learn that it wouldn't be out this Christmas as initially planned, but it had to make way for some stupid movie by SonyPictures.