Info on Lego SPIKE Prime and Scratch?

Does anyone have information on Lego Education announcement of "SPIKE Prime" (https://education.lego.com/en-us/products/lego-education-spike-prime-set/45678) which includes something "Scratch based?"  I can't tell from the videos if that's Scratch Jr, Scratch 3.0 or other.  Will probably coach a FIRST Lego League team this year but the "SPIKE Prime" kits aren't available until August when the challenge is announced.  Thanks for any follow-ups, news, pointers, it's great to see Scratch involved in Lego robotics.  Best regards, -- DanG / Daniel Green / dang@dang.net