Meh, I'll pass - I never liked the HD555 and HD595, I doubt these will be any better. IMO Senn got lazy with these, they just used an existing design and changed up the colors. They would do well to strengthen the flimsy plastic on the headband assembly, I've read that quite a lot of people have had problems with cracking on theirs.
I'd have been more interested if they perhaps took from the strengths of their other headphones (e.g. the more rigid and durable construction of the HD6xx series) and came up with a new cup design ala the HD800.