2. The EU agrees
3. Brexit is moved off
4. Boris Johnson prorogues Parliament for a sensibly short period to start a new session
5. Tries to pass a Queen's Speech. Fails.
7. Tries a VONC as a backdoor route to a GE. MPs VOC Boris Johnson right back in.
8. At this point, Boris Johnson is totally stuck. He can't go ahead with Brexit. He can't do anything new (no Queen's Speech).