We found out during the latest Super Smash Bros Direct that a number of new amiibo are coming this year and early next for Super Smash Bros. Ultimate. One of these amiibo is the excellent King K. Rool who is a playable fighter in the upcoming Super Smash Bros. Ultimate game. Nintendo has given us a closer look at the amiibo in the tweet below. He will be available to purchase on the 15th of February 2019.
— Nintendo of Europe (@NintendoEurope) November 11, 2018