Hmm.. I slightly prefer the shape of the old one, but the new one does look really sleek and neat. It's a nice improvement, anyway.
The air intakes look quite superb, I've never seen a design like that before. Overall, the craft is solid and looks very good, perhaps a tad chubby and more cute than tough, but good nevertheless. Neat greebles, too (as always, it seems
As for the tail section, I think the horizontal bar looks a bit too plain. Some greebles - particularly on the sides, close to the neat fins - would be nice, as they would break the plainness and give it some shape. Something as simple as minifig hands might do the trick.