@22itsallnew We look forward to finding out in 202??! By which point the odds are Johnson will have been ousted already as there’s only so much scandal rhubarb a Government can survive
The Met have asked for a delay until after their investigation, not until after any prosecutions.
Given that they've presumably already been handed the basics of the information they need to look at, which itself took only 2(?) weeks to collect and evaluate, I can't imagine that the investigation will last that long. It'll presumably be mainly a matter of confirming statements.
Oddly enough, as it's the event which started all this, I suspect that the May 20th drinks in the lovely weather won't be something that anyone faces prosecution over. No crime seems to have been committed on that occasion, although the guidelines were obviously broken.