This is mostly a copy of an article I from Reddit/wow but I think the ideas are worth discussing.
Warfronts needs to have PvP version(Both bg and competitive) and a Mythic PvE version with very high difficulties that function like a single boss raid.
Island needs to have better rewards for PvE as well as Mythic+ versions added with affixes. However, there should also be more focus on the PvP version as it is the only iteration that is currently enjoyable. Add leaderboards, honor and pvp gear etc.
HoA either needs to scale the traits instead of unlocking them or to simply add a new ring for each tier and have each ring be unlocked at the same level on all items.
Warmode needs world PvP quests. Especially warmode quests that have you attacking or defending a village whereas the other faction gets the same. So all horde gets a pop of World quests to defend the Crossroads as an example and all Alliance gets one to attack it. While active the zone gives bonus honor and it should give greater rewards to the side that wins.
The article ofc goes into greater details and fleshes out all of these concepts.
https://www.progamerreview.com/battl...sed-potential/