Regarding the upcoming 4.2 changes, there are really 3 areas we need to think about.

First is offensive buffs, this can be as simple as potency increases, cast time reductions or spell interactions. Honestly, this needs to be in the changes but it's pretty basic stuff that shouldn't be too in depth, it just needs to meet the benchmark of "does this do enough damage" which we currently do not.

Secondly is QoL changes, maybe some workaround to make weaving our role actions easier or make them more user friendly (why does mana shift cost mp???), these can have very minor end dps effects but won't make or break the jobs balance, just it's flow and feel.

Most importantly though is it's defensive utility, and that will ultimately determine whether or not this job gets played in progression ever again (outside of blackcat) by most caster mains. Currently is has none of this and that really solidifies the job as an underperformer. I was thinking about how to create a defensive identity for this class that isn't just a raise and the power budget needing to be allocated to match this is insane. Throughout Omega prog would you rather have access to Tank LB3 or Raise? Would you rather have refresh+tactitian or Raise? Would you rather have Hallowed Ground or Raise? These are all (in my opinion) things I would give up for the ability to raise while learning a fight, which kinda demonstrates just how powerful a non-raise equivalent skill for BLM would have to be.