I havent seen the film yet, but the trailers and the bits I have seen on progrms etc and the overall art style make it look a lot like "Tangled on Ice".
now I loved Tangled, awesome film, but dont want to see an inferior rehashed version with snow. Is it different enough to go see?
Absolutely. I would even argue that it's better than Tangled (which I loved), and the best Disney Animation Studios production since, uh... Lilo & Stitch?
I wasn't too impressed by the trailers either, but the film itself is much better than they'd suggest. The art style may be somewhat similar to Tangled (and I prefer Tangled's character designs), but Frozen's story is quite different, the characters are great, and the songs are much better and better integrated into the flow of the film.
I actually went to see Frozen a second time today, this time with my 6 year-old sister, and I loved it just as much as I did the first time. (My sis loved it, too, of course.)