Beyblade Burst's answer to MFB's Ultimate Beystadium. Planned to be released in October 2017. 

Official leak: https://twitter.com/trademark_bot/status...0086756352

Again, I have to remind you to leave news posting to people who know how to interpret it... We already know about that stadium, whose actual name is "Infinite Stadium", and it has no release date at all.
https://worldbeyblade.org/Thread-Beyblad...te-Stadium

Also, just because they trademarked that name does not mean that it will even be released at all.