I think that, besides the gerneral shape, this new Enterprise will look quite a bit different than the one we all know and 'love' - at least if they stick with what was hinted at in the teaser.
I doubt that the creative team would redesign the sets, uniforms, insignias and that shuttle just to give us a far too familiar 'new' Enterprise.
I'm not at all convinced that the ship we saw in the teaser is the one we're going to see in the movie. There are a number of things in the teaser to suggest that the 3D model was built either somewhat hastily or without a fully refined blueprint. I also question whether or not the design for the ship had been locked down--or even seriously begun--that early in the production schedule. Perhaps it was, I really don't know, but the trailer was finished several months before they even began principle photography, let alone post production, and that leaves a lot of time and opportunity for further changes.
As for the creative team and their desire to change things, at least one of the items you mention, the uniforms, has apparently turned out to be far more authentic than practically anyone ever thought they would be.
J.J. Abrams is the type of person who likes to defy expectations and do things his own way regardless of conventional wisdom. Almost everyone out there is saying that he would NEVER use anything close to the original Enterprise
design in the new movie, but I wouldn't put it past him to damn well do it anyway.