Don't think they will introduce a flyweight division whilst the feather and bantum divisions are still in their infancy. Dana already stated he will probably introduce flyweights in 2012, but WEC also stated they will introduce flyweights in 2009 and never did.
Probably a bantam season then, and I expect them to have a LOT of good boxing strikers, with the likes of both Pacquiao and Donaire coming out of the Phillipines, two ring legends at the moment.
Can't wait, I have to say, the little guys (fly, bantam and feather) are my favourite divisions to watch. Most explosvie P4P fighters between 125lbs and 145lbs.