Intel is currently working on the launch of the new Cascade Lake processors. They will succeed Skylake and Skylake-X and start in April and at Computex 2019.
In the CompuBench database an entry has been leaked that could show the first AMD Radeon Navi graphics card. It is faster in gaming than the RX Vega 64.
At a presentation AMD published new details about new CPUs. Ryzen 3000 will be released mid 2019, a third Threadripper generation will be released as well.