You should ask this question to Intel, nobody in the DragonFly team has access to such hardware.
We have to do with boring alternatives we can actually find on Newegg like dual Xeon-E5 and quad-Opteron boxes :-)
SCTP support has just been removed from DragonFly. The code had been present for 15 years (inherited from FreeBSD) and in these 15 years there wasn't even a single known user.
If there really are people using it it's effectively in a very very small niche and they will have to do everything themselves. There is no way generic operating system developers can work on this protocol.
The DRM code itself as well as most of the drm drivers is under a MIT/X11 license.
It was only integrated in Linux in 2008 (not 100% sure of the date) and was maintained in a separate tree before that. It also had to be compatible with X11, hence the choice of license.
All recent Intel GPUs are supported, including Kabylake and Coffeelake.