Honestly great news, I felt the wrist bands were far superior to the cattle pens in almost every way. I know some folks weren't fond of their game plans changing due to folks being able to line up in the actual house lines early, but personally that didn't affect me one bit.
Being able to just get a wrist band (which was a breeze at the Villian Con station), casually stroll in the park or hang out in air-conditioned buildings, ride E.T. and MIB a good chunk of times and then just stroll in line for Hatchet and Chains made for a much nicer start than baking in a crowded pen. And more importantly, I know a bunch of TM's who feel this process is far nicer for them as well!