You can now buy Overwatch boxes or complete Blizzard games with your in-game World of Warcraft gold!
This feature was data mined months ago and now was finally launched. World of Warcraft Tokens can now be turned into Battle.Net Account Balance. One Token is worth $15 USD, 12,99 EUR or 9,99 GBP. Just as expected, the gold prize for Tokens exploded over the last few hours. It will for sure take some time until the new prize settles.
Battle.net Account Balance can be used on every item available at the Battle.net Store. This includes complete games and of course character services for World of Warcraft.
Below is the official introduction video by Blizzard, a FAQ can be found on worldofwarcraft.com.