Of course it will change, the government will discover there is absolutely no need for any distancing in schools, children don't transmit and teachers are miraculously immune to covid
I think they are already leading us this way.
Every other group should have social distancing pretty much, or shields around them or PPE, but children and their teachers/TAs are immune from that.
It seems very convenient that the 'children can't transmit it' rhetoric started being kicked about just as schools were told to take more children back and schools stated they wouldn't be able to socially distance 4 and 5 year olds.
We've been told we don't need to - so groups of 15 in classrooms is fine, even though if we tried the 2m social distancing rules it'd be a maximum of about 8 really.
It won't be long before schools are told children - and soon young people I'm sure - are immune and can't pass it on therefore we can return to classes of 30, assemblies of hundreds, etc are all fine.
And we;l be told that teaching staff are at no greater risk so can all return, including those who are clinically vulnerable, and no doubt soon after, even those who were told to shield.
It's the only way schools will be able to open normally and do the government advise will have to match that - I'm sure the scientific findings will match whatever the government need it to be.