Concerning characters and upcoming events of the series. We’ll link more solid sources as they become available.
Not one hundred percent confirmed by official sources or the news, but those in attendance are saying besides Asuka Tenjoin (Alexis Rhodes) and Kaito Tenjou (Kite Tenjo), Ed(o) Phoenix (Aster Phoenix) will be returning.
Phoenix and Kaito are famous Duelists from the Xyz Dimension.
Yugo will be staying behind in Synchro after the current arc ends.
Source: Twitter and Nintendo World BBS