Next season in the Championship you could have the crazy situation re terracing:-
WBA having being told they can't install safe-standing/rail seats and having to continue with all-seated stadium.
Shrewsbury, having been given the permission to install safe standing, have done so.
Burton have terracing on 3 sides, and 85% of capacity with no planning to do anything about.
Brentford, despite having been in the Championship for more than 3 years having old style terracing, (which probably is not 100% perfectly safe) behind both goals. I assume they have been given exemption for the year on the basis they are building a new ground, albeit progress is slow.