I bet they will support ipv6 with the B revision first then move it into the A line. Either way if they wanted you to buy a new router to get ipv6 that is up to dlink. If you needed a new cable modem to get ipv6 what would you do? You would buy a new one unless you were renting. Same as everything else, you got what you PURCHASED, if a company decides to give you more than you purchased then you benefit.