I have no idea where you got that idea from. Tenchi muyo in love ended with Nabayuki talking with his father about how Achicka was doing after giving birth to tenchi. And he never even talks to Ryoko much at all in the movie. As a matter of fact, the story revolves around his parents more than it does him. But about the new series. I have a link to a site for it in the Tenchi Girls thread, but I guess I can post it here too. And be sure to check out some of the trailers.
https://www.tenchi-web.com/e/index.html