The thot plickens. Allegedly, the Red Bull engineers are struggling to 'hide' a system which moves fluids (water & petrol) around the car to optimise it's C of G (which by agreement of all teams is deemed illegal as weight distribution was set for every car competing) and that the whole fuel debacle is down to the fact that whilst it had enough fuel on board at scrutineering, it had to be available at the filling point but was 150ml short.
The "missing" fuel was somehow trapped in this system and was therefore unavailable to be tested.
It is further alleged that RB have elected to start from pitlane which is a worse & self inflicted punishment rather than starting dead last on the grid, in order to strip out these illegal parts before end-of-race scrutineering, but does give them a chance to put in a fresh engine and gearbox for the last 3 races without further penalty.
There is also a question of a 'thermal strip' which expands and contracts in heat cycles and variously obstructs/opens brake cooling ducts on the RB, a moveable system which is illegal.
It was even further alleged that RB were not allowed to remove their car from Parc Ferme for these reasons, however, I cannot find any update on this, so I guess it's just rumours.
Ferrari look to have received soft treatment from the Stewards concerning the 'curfew' they broke twice. Teams are allowed 4 occasions per season but they must not be 'back-to-back' which clearly was the case on both Friday & Saturday nights/mornings.
Whether a major explosion is coming or perhaps a damp squib, who knows, but it looks to be an intriguing end to the season.