I thought it was unlikely that anyone would forgo having a president, but then Belgium did it. Again, thanks Belgians.
The next check on the disconnection of voting mechanism and ruling mechanisms is to suspend voting entirely in one of the G20. I predict no noticeable difference in governance, and only token resistance from the population - little in tax protests, for example.
If governance does anything more than skip a beat, or the former voters do something beyond nuisance, I will have something to explain.