If Maul can survive for BS reasons and then from that turned into a better character they can do the same with Mace.
It always rubs me the wrong way though that, at least from my outside perspective/what fans have told me, Filoni used the one black character as the embodiment of all the Jedi's failings and felt he had to make him look shitty to prop up his own character and Anakin (the whole trial arc).
Mace in the films comes off as someone who really does believe the Jedi can do good but is overly cautious/pragmatic- he doesn't want to risk bringing Anakin in to begin with and throughout he is understandably wary of trusting him. And killing Palpy is another pragmatic move that does somewhat clash with the Jedi way.
From what I've heard of TCW and supplemental material they dial up his jerkass tendencies and make him seem arrogant and borderline almost a Sith in some fans eyes.
TL;DR: yes he should come back, but if Filoni is going to just use him to prop up his own characters and/or make Mace out to be the bad guy/a failure then no. Star Wars already treats it's characters of color terribly, no need to bring another one back just to drag him through the mud.
Feel free to correct me if I'm wrong on TCW's handling of Windu, I'm just going off of what others have told me, reading summaries, and general impressions.