Yeah Khan will win, its never in doubt.
I hope you're right, but between Ulez, general voter apathy to Khan and perhaps a misunderstanding that you could protest vote Gaza, he could be in trouble here. The gerrymandering Tory changes to voting preferences are a massive issue. And if that was down to a large number of Gaza protest votes allowing Hall in, that would be the biggest self-inflicted harm for the capital since Boris, and likely would result in much, much worse results.
If she wins, the Tories will learn all the wrong lessons and I would easily predict a slew of Susan Hall-esque Trumpian, Marjorie Taylor-Green candidates running for them in the next few years. Look at the national shift in policy that happened immediately after the ULEZ issue and the Uxbridge by-election win - it completely transformed the Tory attitude to Net Zero.
This could have similar, very dark, repercussions.