News Ryzen 5 5500U Implies Ryzen 4000 Refresh Isn't Far Off

Forget the mobile "U" series 4000 refresh .... where are the desktop 4000 parts?

I thought AMD skipped 4000-series desktop to reset the numbering scheme somewhat. Last I recall, the 5000 series realigns both Ryzen APUs and CPUs to the same Zen arch, although AMD is cheating a bit in the APU end of things (supposedly low-end APUs using Zen 2, and high-end APUs using Zen 3).
 
I thought AMD skipped 4000-series desktop to reset the numbering scheme somewhat. Last I recall, the 5000 series realigns both Ryzen APUs and CPUs to the same Zen arch, although AMD is cheating a bit in the APU end of things (supposedly low-end APUs using Zen 2, and high-end APUs using Zen 3).
That's what I thought and hoped as well. The numbering scheme was more confusing than needed before. I'm hoping the new 5000 mobile series is based on Zen 3. Otherwise, really, what was the point in going to 5000?
 
I thought AMD skipped 4000-series desktop to reset the numbering scheme somewhat. Last I recall, the 5000 series realigns both Ryzen APUs and CPUs to the same Zen arch
It was my understanding that all the 4000-series parts were Zen 2 arch. If that isn't the case, where are the Zen 2 APUs? 3200g/3400g are Zen 1.