My SC has told me that the Next Gen seats can now be ordered but from what I have told its going to be horrible deal. The impression the SC has been given is your existing seats will not be returned, Tesla will keep them on top of charging about $5000 for the seats! So essentially the cost of the upgrade is $7,000 since i figure your old seats are worth at least $2000. Mind you this is not set in stone, this how the SC thinks the upgrade process will work. Hopefully Tesla gives a fair credit for your old seats toward the Next Gen ones. Personally I think a charge of $3000 and Tesla keeping the old seats is very fair.