AMD just started sending a mailing in which it teases that something big is coming June 8th, the teaser video that accompanies it shows a Radeon graphics card with 6 display ports.
I would not get my hopes up that this is a consumer Radeon graphics card, but more likely a Radeon PRO series / Instinct RDNA2 Big NAVI based graphics product. The blue colored outer shell confirms that as well.
