I agree with all that
I would also add safe standing on the north in T maybe T1, away at home vibes.
A family section not in roof of the South attracting kids towards the pitch and mascots etc. Probably EE and maybe DD1.
Controversial one, but my youth memory is celebrating goals away from home singing the Triumphal March by Verdi . We should bring back goal music . Tinpot to some but I see it work at QPR , Ipswich and many others as moments of unity after a goal.
Personally I would probably change the walkout music to something more connected to sheffield. But I know people feel very tied to waterfront. An instrumental of monkeys Brainstorm would do for me. Aggressive , written in sheffield and has a perfect fade out at about 1 minute 15 in.
There are so many other changes i would make but alas it ain't up to me or any of us at the moment