Word is going around that Intel is working on a 22-core Core i9-10990XE processor. Not a lot of hard evidence so far but VideoCardz has an overview of the rumors over here. This would be Intel's first LGA2066 part with an XCC-Die (Xtreme Core Count). Guess we'll find out soon.
These rumors have been confirmed by motherboard manufacturers at CES 2020 floor, ComputerBase claims. This is actually a common practice for board partners to start such rumors, it does not mean that they are true.
The story at Chiphell goes a little bit further, as a CPU-Z screenshot associated with such a 22-core chip was also shared. The CPU-Z and Cinebench (which was also posted) are easy to fake, hence should not be taken very seriously.
At the moment, the highest-core count part Intel has for the HEDT consumer market is the 18-core Core i9-10980XE, which costs $979.