Sleep Token are teasing an offering at 3am AEST Saturday morning

Sleep Token

The caption reads: "II - an offering, to be presented on Friday at the hour of 1800 BST. Worship." 

The video seems to focus on one of the masked band members - I am going to assume the band member II - as the caption implies.... So it's entirely possible that this is either: a studio drum playthrough from II, or perhaps even a full band live studio performance? 

It's possible it's the former, as it seems to focus pretty heavily on the drums in the impeccably shot video. What's your thoughts?