I still don't understand how that 3 way vs 4 way holds will work. Online someone chooses 3 way vs 4 way? If there are no disadvantages for 3 way then no one will pick 4 way. Why guess 1/4 when you can guess 1/3? What will be the tournament standard? I don't like this at all. 3 way always dumbed down gameplay because it eliminated the mid kick-mid punch mixups.
Default will be 4 way, ranked will be 4 way, tournaments will be 4 way but if people want they can change to 3 way offline or make 3 way player lobbies if they find 4 way too complicated.
Would be my guess