It's probably because I was an agsty teenager when revenge came out, but I was always rooting for Anakin, (even tho I knew he's gonna get ****** ) I still hope he wins every time I rewatch revenge.....
Well, they didn't really retcon it. They haven't released anything that contradicts it, so it's still viable Legends content. And, because it's a movie character, probably in semi-canon limbo. Because, as soon as anything gets drawn from Legends, it's canon again.
Legends until they get contradicted completely or brought back in as source material for something newer. So, there's hope. Darth Bane's an overrated piece of **** , though, so I hope that stays Legends forever.
For instance, because Kylo Ren's lightsaber design is from the Mandalorian Wars ("Scourge of Malachor"), basically everything directly related to Revan is once again canon.