I would be very surprised if Balenciaga didn't go forward w/the step style. I believe the style is gaining popularity very quickly. If this is true I may have to buy a couple more in f/w07 colors.
I recently purchased a violet/grape Step from Aloha Rag.. I remember being told that... If any of you happens to email/call them, please verify. Of course I could have misheard them since I was so excited about the new bag..
I'm w/ you, Step is awesome... it's a bit more structured than other styles w/ the bottom and feet for protection. I personally think Step/Mini Bowling/Shrug are the best styles in terms of versatility and comfort of carrying.
At the time pre-spring colors were shown, they were still offering the Step. Guess they could still discontinue it, but I'd be surprised, given that it's so new and seems fairly popular.