Auf https://wiki.ubuntu.com/Kernel/RollingLTSEnablementStack#hwe-16.04-edge steht:
UPDATE SCHEDULE
As mentioned, the kernel version provided by the hwe-16.04-edge path will provide early access to the newer kernel version up to ~6mo prior to the hwe-16.04 path receiving the same.
We will introduce the newer edge kernel at each point release. For example, 16.04.1 released in July, 2016. At that time, hwe-16.04-edge would point to the Yakkety kernel currently undergoing development for the 16.10 release. This will allow for a maximum ~6mo baking period before being officially delivered and supported in the 16.04.2 time frame. Once hwe-16.04-edge and hwe-16.04 both point to the final Yakkety HWE kernel version they will remain on that kernel until the 16.04.2 point release takes place. Immediately following the 16.04.2 point release, hwe-16.04-edge will again move to point to the Zesty kernel undergoing development (ie. the eventual HWE kernel for 16.04.3).
Aktuell bekommt man damit schon den Kernel 4.13, den aktuell auch Artful und Bionic haben: https://packages.ubuntu.com/xenial/linux-image-generic-hwe-16.04-edge