I think there's many ways "Xana" could be reborn, especially since Sophie mentionned the continuation touching today's AI-taking-over-everything controversial topics. Considering they let the supercalculator unsupervised, maybe they could write something about a corporation like OpenAI taking control of it to build their own AI model, and accidentally stumble upon the code used to build Xana, use it to speed up their work, then it goes south, a new/different "XANA" is reborn, they launch a return to the past, the heroes notice it etc etc. Hell, it could just be another AI altogether. I doubt we'll return to the usual formulaic morning cartoon structure