Yamaha has cut their racing budget by 75 percent. They are moving the Moto America Superbike program in house with two bikes. They have parted ways with Graves. They will also no longer be running 600's as a factory supported program. Graves has been linked to a couple different manufactures for 2019, but nothing has been announced yet. Yamaha is also likely out of WSS etc as well and I think there may be some shakeup in the dirt world as Cooper Webb suddenly signed a KTM deal out of nowhere.
JD Beach posted on IG a pic of his stuff that he cleaned out of the Graves trailer, was kinda sad to really see it go down.