I can’t see how they can suspend the league. There will be no furlough this time so players will still be expect to turn up for training etc. Paying lower league players just to train will cripple clubs.
For the top divisions, when would they play the rearranged games, there’s an international round of fixtures at the start of June. Next season starts at the end of July so there’s no scope play through to August as they had done for the 19/20 season. The Champions League starts at the start of July as well.