We're putting the finishing touches on an alpha version of our new Admin for internal testing now, to be followed by a round of beta testing with select clients, and a final version ready for public launch by the end of this year.
Our decision to upgrade our 2CheckOut integration to support full cart checkouts eliminates the need to rush the new Admin into production by Nov. 20th when Google Checkout retires for good, as our current Admin already has all the settings required for 2CO integration.
We are thinking it best to wait until after the holiday shopping season before we do a general launch of the final new Admin, so our sellers won't have to deal with getting accustomed to a new interface during their busiest time of year, though the new interface will be largely similar to the current one. Beta testing should at least allow us to grant limited access to the new Admin before then for sellers who wish to be early adopters.