You may still compile your imaginations and collect inspirations to fit all new shiny responsive stuff while pushing the actual coding/designing till the release of fist beta of 1.2 which I guess will not take longer.
I'm taking the opportunity to rebuild a fresh new style for my site; completely different from the old style. My new style, so far, has only one template edit, and that is from my own add-on. When 1.2 is released, I should have no templates to revert. My previous style had a lot of edited templates.