Napqueen,
The thing is, I do think that with only half the children in at any time, we could keep going safely - we managed the full half term from June 1st with half class sizes, teaching both in school and online, and with similar community transmission and stayed open. Obviously the winter would be riskier, but we would have a chance of a full half term of half-time schooling, and if that was successful, we could build up towards full time.
I anticipate individual children being sent home will start in week 1 or 2 in September; bubbles popping within a couple of weeks; lack of teachers maybe a week later as bubbles popping all over the town lead to a childcare crisis. i anticipate serious shutdowns by half term.
Would you prefer 2.5 days of absolutely consistent in-school teaching (or week on, week off) for the whole half term - and probably more up to Christmas - or in and out until half term and fully out for the second half term?
Or are you just saying you would like to start off with your 'ideal' and cross your fingers that you will be one of the lucky ones?