Whatever happens (and i mean whatever), this kind of freak show has to end. The only way they can do that is by a change in the rules for the EFL and Prem which sets out a contingency plan for what happens if a season cannot be completed.
My suggestion would be that there must be a date cut-off for the end of any season. In my view this should be 31st May.
If, by that time, all clubs have completed more than 75% of their fixtures, the season is declared complete, and the points per game are calculated and positions allocated accordingly.
There should be old-skool straight promotion and relegation with no play-offs, as there MAY be no guarantee that they could be played.
If ALL clubs have NOT played 75% of their games by 31st May, the season is declared null and void. No champions, promotion or relegation.
I suppose you could argue with the last point that someone who is sure-fire on for relegation could postpone their 33rd match for some made-up reason and get the season voided, but i think that would be unlikely (unless you're a Sunderland fan).