Provided we're able to implement a system where playing football behind closed doors is safe, these should be the priorities(in the following order);
If the system is implemented well before August:
1. Finish the current season and then start the next. This is the ideal scenario.
If the system is implemented sometime in August or September:
1. Void the current season. No relegations or promotions. If there's European football(unlikely), the same teams play again. Start the next season as "normal".
2. Finish the current season and play half a season starting in January.
3. Finish the current season and scrap the next entirely.
4. Void the current season and start the next.
5. Finish the current season with the current league standings without playing any football. Then start the next season.
If the system is implemented sometime between October and late December:
1. Finish the current season and play half a season starting in January/February.
2. Finish the current season and scrap the next entirely.
3. Void the current season and start the next(half season)
4. Finish the current season with the current league standings without playing any football. Then play half a season.
If the system isn't implemented before the summer of 2021
1. Finish the current season. Cancel the next season entirely because of lack of time..
2. Void the current season and cancel the next entirely because of lack of time..
3. Finish the current season with the current league standings without playing any football. Cancel the next entirely because of lack of time.
I don't dare to think about a scenario where we can't play football even behind closed doors for more than a year from now