I wanted to open one last thread here and write my final 3000th post before the definitive closure of the forums, in turn because we won't be able to discuss the next coming update from May as a result.

So for this last thread I'd like to discuss which could be the remaining Final Smashes that are yet to be revealed, the Final Smashes for Waluigi, Krystal and Simon. Well, for the latter, the Flash of Shadows April Fools video heavily implied Grand Cross from Ultimate would be Simon's Final Smash again (which makes me wonder if devs had different options before eventually picking Grand Cross). So that leaves us only with Waluigi and Krystal. I'm not familiar with Krystal so I cannot make a sure guess for her Final Smash, as for Waluigi, maybe his Wall-Luigi! technique from Mario Strikers Charged does appear after it was considered to be his down special but instead makes its leap as his Final Smash, or even better his Purple Spike Mega Strike, whipping hard the opponents with a huge purple bramble whip. I leave the rest to you whereas the forums remain open. Good bye, folks! Until we meet again.

Simon's will be either Stopwatch or Hydro Storm

We literally saw Grand Cross already, though.

My best guess for Waluigi is a modified version of Luigi's Negative Zone from Brawl (except obviously purple, maybe in a Γ shape)