Kabam, if you haven't considered it already, please keep the WoW/SoS/etc going long term
Possibly a hot take, but these fights have been extremely fun. Don't get me wrong, having everest content to do or Carina Challenges to plan for is great and all, but those are all investment heavy pieces of content with one time payouts. The SoS style of fights has been such a refreshing change of pace. The fights are hard but not impossible, they often require use of Champs you wouldn't normally use, they give a decent chunk of rewards that (I feel) is worth the effort.
Some fights can be overtuned, sure, or some mechanics can be a bit finicky, but overall the fights have been extremely manageable. It's been nice being able to look forward to content that isn't a walk in the park. Story chapters have had the difficulty super tuned down, and EQ is extremely simple at this point, so having content you actually have to read the nodes and work with them has been fantastic.