First, this entire news post is based on hearsay, so take it like a rumor. The first one is that WARHOL, the Zen3 optimized Ryzen 6000 series might have been canceled. Currently, 

Ryzen ZEN 3+

So to see WARHOL this year, the successor to Ryzen 5000, Ryzen 60000 would not make heaps of sense. The rumor is backed by the fact that the new node optimization would not yield much extra performance anyway. AMD also cannot fab Ryzen 5000 in enough quantities, with many end-users on hold for pre-order. Basically, things have gone silent on Warhol, some say that the line disappeared from internal roadmaps. Also, keep in mind that AMD has never officially announced the Zen 3+ refresh just yet.

Ryzen ZEN 5 BIG.little

Much like Intel, AMD would also be designing a BIG.little architecture, that would be a mix of energy-efficient CPU cores and high-performance cores, much like Alder Lake from Intel. Here MoePC claims to know more about Zen 5. The Chinese website labels this generation as Strix Point APUs (we can imagine ASUS being very happy with that product codename), and these would be fabbed on a 3nm node. These processors would fall under the Ryzen 8000 series. MoePC claims that the Strix Point APUs (they'll have an integrated graphics unit) will see 8 large cores and 4 small cores. The estimated time of arrival would be 2024. 

Again, both rumors fall within the highest category of speculation. 

Rumors: Ryzen 6000 (ZEN3+) Could be cancelled and ZEN5 going for a BIG.little architecture