AMD is no longer the underdog, so they don't need to discuss their roadmap far in advance. So I wouldn't expect to hear them talk about Zen 6 anytime soon. Saying stuff too early will get people to start saying "wait for Zen 6." They don't want that.
Zen 6 is gearing up to be quite exciting. If the rumours are correct, there will be a chiplet redesign that should cut chiplet latencies significantly. Having more cores/cache per chiplet/CCX should also help boost the gaming performance of non-X3D chips. It looks like AMD is addressing some of the architectural issues that have become a growing problem for AMD, and that's great news for everyone.