I shouldn't get too flustered about it at the moment, I very much doubt anything will happen quickly going off SEAT normal procedures, of which I've had many years experience waiting for press releases for here.
They announced the new black or white wheel amends ages ago, and I believe they are only just filtering into the market now, due to the build dates.
I can't see anything being announced or revealed before New Year. They might choose Autosport as has been suggested to show off the amendment, but I'm not so sure.