Earlier quoted context omitted.
> I want to leave too! There was a brief desire to start an independence movement for London... It might very well happen (starting a group, not independence itself - if that ever happens it'll be decades) if Brexit gets too nasty and Scotland leaves and causes rest-UK to be even more hostile to our concerns.
London independence would surely only come with the complete collapse of the UK. Or it becoming an EU-like organisation. And that's not entirely impossible - there are enough regional independence movements that it's possible to imagine it. Much more likely, though, is that everyone argues about it for decades and nothing happens.
But any kind of devolution for London that makes much difference will end up increasing divisions, and increase the odds the UK fractures further. I have a hard time picturing a UK 30 years from now without imagining a Westminster that has devolved away most of its powers.
Even then, I suspect Scotland will still leave sooner or later, and possibly Northern Ireland too.