According to Chiphell user, Intel is now expected to launch its W790 chipset for the high-end desktop (HEDT) series in the third quarter of 2022. There is no X699 chipset, which would launch alongside the Alder Lake series, but there is indeed a W790 (workstation) platform arriving at the same time as the 13th Gen Raptor Lake desktop series.
Intel today has officially announced the design of next gens CPUs. According to Intel, Intel 7 node will be used for Alder Lake consumer CPUs and Sapphire Rapids data center processors. Intel Alder Lake will start shipping this year, while Sapphire Rapids will enter production in the first quarter of 2022.