Honestly, at this point, why bother? If the move to AM5 happens this year, all these CPUs will shortly be platform-obsolete, the way AM3 is today...
*edit*
Downvoted? Really? 40 pages of people complaining about a retail shortage, we're past mid-2021, and a new socket is right around the corner... and now people get downvoted (anonymously!) for speaking their mind? When did this forum become Facebook or Twitter? Who the hell even asked for this feature?
You're really trying to get rid of us old-timers, or what? This exactly the kind of crap that makes us less interested in visiting this place.
AM5 is not happening in 2021; it is *rumored* to be launched in late fall / early winter 2022, BUT, a lot of us are going to wait a few years before jumping on DDR5, due to the historical record of DDR3 - DDR4, and all the other RAM changes of the past.
IF the new stuff at release is slower and more expensive than the old stuff, well, it will be underwhelming; though DDR5 is supposed to launch at high speeds, the price will be the deciding factor of whether a new system can be justified, even for enthusiasts to mess about with.
From a consumer standpoint, I feel like AMD dismissing AM4, even next year, is a bad move. There is a lot of life left in the socket still and B550 / X570 boards give a lot of bang for the buck.
My WAG is that the pandemic and the booming success of the Zen3 X parts (5900X demand is still not met) could justify pushing the DDR5 platform release a few months back with no negative effects to the long term roadmap or sales.