User blog comment:PSI Seven/Smash 5 predictions because I'm unoriginal/@comment-13431011-20180309170614/@comment-25956022-20180310143118

If it was a port, they would show the gameplay directly just like those other ports like Mario Kart 8, Hyrule Warriors, Bayonetta 1/2, and the recent one, Captain Toad's Treasure Tracker. They won't create a new logo and a cinematic trailer just for a port. So it's 106% Sma5h, not Sm4sh Switch.