anandtech is reporting that the chip might be for the LGA2066 platform[1] for home use. ;)
Before you get too excited, the current generation of 28-core xeon running at 2.5G costs you over $10k each [2]. I won't be too surprised if Intel sets the price of a 5G 28-core Xeon at $15-20k.
That being said, having more choices is always good. Can't wait to see how AMD is going to respond to this using their Epyc line of chips.
[1] https://www.anandtech.com/show/12893/intels-28core-5-ghz-cpu... [2] https://ark.intel.com/products/120496/Intel-Xeon-Platinum-81...