According to what reported, on April 30 we could only attend a "paper launch", while for the first reviews and benchmarks we will have to wait for the second week of May; the actual availability of the products instead could shift further, especially given the current situation Coronavirus-related situation. The launch of the new Intel 400 series chipsets and their motherboards is likely to follow the same schedule.
Recall that the Intel Core 10th gen Comet Lake-S processors use a 14nm +++ production process and will offer configurations up to 10 cores / 20 threads with clock frequencies exceeding 5 GHz. The site in question finally publishes an additional price list that we report to follow and which, of course, is not yet official at the moment.
NOTE: all prices are excluding VAT