[Nonfractal]

Really hope I am wrong, but one possible outcome is that Verstappen takes out Hamilton in the final race and wins the world championship on basis of 9 wins to 8 wins. How do the race stewards legislate against that happening?
Max has already shown that he is sufficiently ruthless to do it.

A senna prost scenario? 
Not Ayrton's finest moment. 
I don't see enough needle between the top 2 to see anything underhand or dangerous happening in the season finale.

More likely that this will be decided by technical and strategy issues , maybe tyres, maybe pit stops.
The pressure on the strategics and mechanics of each team must be immense.
Whatever happens, there hasn't been this much interest in f1 since Lewis' first championship.

If it comes down to drivers and how they are deployed, the 2nd drivers might be pivotal. 
If that turns out to be the case, my money is on Chekko over Valteri to make the difference to the final result.

Alan