We know it's coming -- but GIGABYTE, did you have to fire off the flares like this? Intel's next-gen Comet Lake (and still on 14nm) CPUs are on their way, and with it will come new 400-series motherboards.

GIGABYTE is preparing 8 new Z490 series motherboards, 10 different B460 motherboards, and 6 different H410 boards. We are to expect a bunch of them in full-sized ATX as well as right down to the micro-ATX offerings -- all supporting the first non-HEDT 10-core processors from Intel in the form of the new Comet Lake family of CPUs.
The new information is coming from GIGABYTE submitting its range of Z400-series motherboards to the Eurasian Economic Commission registration process.
There's nothing else known about the CPUs -- but I'm sure those blanks will be filled in the coming (maybe plus-plus-plus or minus a few) weeks.

This is what we should expect from the new Comet Lake CPU family.