Anandtech claims to have obtained access to some materials that indicate Intel is planning to release a new, extremely high-end desktop CPU. This processor, the i9-9990XE, is described as having a base clock of 4.0 GHz, 14 cores, 28 threads and a TDP of 225 watts. However, it will be open to OEM bids only.
https://www.notebookcheck.net/The-4-GHz-14-core-Intel-Core-i9-9990XE-may-be-available-soon-but-not-for-direct-sale.394666.0.html