I doubt they will fix anything to quench the d-leveling. I suspect the world of game development is the same as the world of automaker vehicle development. Everyone wants to work on the new vehicle program. No body wants to get stuck having to go back to an old car or truck that is out on the road and fix warranty problems.
Having to pay someone to fix code on a released game like this is a term we use in the auto world as F-cost (Failure costs) although there is another word we use for the F. Everyone wants to work on coding the new game in development. They don’t want to go back to this game (JWA) and trouble shoot all the little problems we have getting this thing to work correctly on our devices or fix the complaints people have with how the game works or the way people take advantage of bugs and just how the game works.
I hate having to go back a fix 5 year old products. I want to work on new stuff. My company doesn’t particularly like having to pay to fix problems on old product but it happens and in the auto world, we have to fix it. In the gaming world, nobody will get stranded in the middle of North Dakota in the middle of winter when it is -24 below zero on the freeway because their fuel pump controller quit functioning.