The problem is that leakers this time around seem even more conflicting than I recall they were with Melee...Here are the "leaked" partial rosters by the three prophets I'm following right now (the ones that aren't laughably bad):
NyaseNya
~ In: Mr. Game & Watch, Ness, Wind Waker Link
~ Out: Megaman
One_Step
~ In: Mr. Game & Watch, Marth, Lucario, Krystal, Wind Waker Link, AC Villager, Geno, Paper Mario, Unknown Wario franchise character, Wolf, Sukapon
UltimateX64
~ In: Ganondorf, Lucario, Geno, Bowser Jr.
~ Out: Ness, Mewtwo, Ridley, Wolf, Sukapon, King K. Rool
And even then they each have quirks I find odd...We can only wait for someone to be kind and take some pics of their review copy! ='D