User blog comment:InklingChris/New challenger Approching!!! Shantae is next? (Check the link down below)/@comment-24888747-20150804223741/@comment-5185663-20150805171706

nintendo may have learned their lesson after what happened with roy, ryu, etc. There are five blank character spots in the game, but they're all labeled "Mario", so I think it is safe to say we won't be able to unlegit find out who's next by data-mining.