Personally if i was to restart the league it would be jan 2021, with pre season from jan 1st.
The only way to restart the league now would be to utilize no more than two staduims in wales or scotland, as their numbers are relatively low, with two matches a day or every other day, again two matches a day, section of an area as a camp for all 20 teams in the premier league, with a view for the league to start in JUNE, and last no more than 6 weeks, once completed repeat the same process for the championship.
If unable to start in June, prefereably just void the season and hope the Jan 2021,things are better, and for the 1st 4 months of the year just have a tournament sort of event, 4 groups of 5 teams, utilizing hopefully social distancing in relation to gate reciepts, merchandise at just above cost price.
I would also float the idea to clubs about combining and taking on a new form, 'club name' i.e. loose 3 clubs from the premier league, 4 to 6 from the championship,league 1 and league 2 respectively, rather than bankcruptcy.
Listening to Boris harping on about past the peak, with over 500 deaths in the last day, is worrying, when 30 days from now, the Uk will easily have close to 40,000 deaths, this is on the basis that i am forecasting a minimum 250 people, pass away a day, and the uk still have over 144,000 active cases.