A little slow? It was supposed to be out months ago This is the second time it has been pushed back, and motherboards are supposed to be ready. If there was a problem with the silicon, that could push it back 3 months for a re-spin, but this is getting silly.
Supposedly the chips are now going into mass production. Given the usual 3 months it takes from wafer start to chips coming out, getting them to a motherboard factory and placed on boards, then those boards on a boat and into our shops we are probably looking at around May.
But if new AM4 motherboard products are turning up in summer, that implies the companies think they have a worthwhile lifespan at that point so I doubt a new socket is imminent.