The new scenarios are in the thread, and under the original blog post!
Prorogue Parliament
My blog entry was tongue in cheek, while this route is both impossible and serious. This hasn't stopped some right wing Tories raising the idea, but it is still - thankfully - very implausible!
Revert to a Northern Ireland only backstop
It was how the Backstop was originally meant to work - with customs controls on the ⛴ in the Irish Sea. Reverting to it would mean the DUP would leave coalition, but it'd appease the Tories.
The Queen dies or abdicates(!)
You're 93. You face the prospect of having to meet Boris Johnson once a week. Wouldn't that be enough to make anyone want to stop? Or might the very prospect make you ill?
/ends