There's been an interview posted at
A few interesting points:
"We are giving people an opportunity to keep up with a time rich player"
"People who are not paying are still able to be at the top of the rankings"
Their current focus is on balancing the game and creating a game which is still fun to play in a few months, and not just a week.
Roadmap: Closed beta -> balancing -> microtransactions -> open beta -> launch -> ongoing development