In terms of logistics, one major problem is that adding a nonbinary gender option means adding another set of voice tracks. Not just going forward, but going back as well. Even if they only redo the lines where the WoL is referred to in gendered terms, that's still a lot of work that just isn't in the budget. And then there's ARR voices, since they're not using the same studio or actors anymore. I'm not against the idea, but unfortunately it's very unlikely to happen.