If George Lucas confirms her death on Felucia in the canon continuity just like her legends counterpart.
Well, TCW was Lucas canon, and its one of the cornerstones of the new continuity. Plus Lucas doesn’t really have much of a say in the new canon, so it really depends on the new writers/producers. And having Barriss suddenly sent on a mission to Felucia after betraying the Jedi Order would be pretty far fetched. Her dying on Felucia in Legends was a hold-over from the ROTS comic adaptation, which also contained the deleted Quinlan Vos death scene, etc.