From looking around on Google, it doesn't look like there's much information from Ford on purchasing options yet.
I can assume that the Ford Focus Electric will be lease-able just like a normal 2012 Ford Focus would be.
One thing that's for sure is that the Ford Focus Electric battery pack will not have a lease option - the price of the batteries will be included in the purchase price of the Ford Focus Electric price.
Did you try the Ford Focus Electric forum?