Darth Bane in canon looks completely different than his Legends counterpart. We know Darth Revan is canon after the TROS visual dictionary but he will most likely get a new design as
Stronox Custom Figures: Star Wars Darth Bane
Why does Clone Wars Darth Bane look so different compared to the Legends Darth Bane? : r/clonewars
Mace Windu vs Darth Bane : r/TheJediPraxeum
Why does Clone Wars Darth Bane look so different compared to the Legends Darth Bane? : r/clonewars
Darth Bane's lightsaber | Wookieepedia | Fandom
Why Darth Revan Used a PURPLE LIGHTSABER - Star Wars Explained - YouTube
The Strangest Lightsabers in the Star Wars Universe: From Dark Rey to Ahsoka Tano - IGN