Far from complaining about the addition of new content (well not 100% new, but new enough to have a fresh feel to it), I do believe that making new ToTW a 6 man raid was a huge missed opportunity to diversify late game leveling content. The inferno grind can become quite monotonous, new ToTW would have been an opportunity to mix that up. The wing bosses are overtuned for sub 220 but the loot is mostly undertuned for 220s (with a few exceptions).
Making ToTW a leveling instance with a few repeatable quests specific to wings with each wing being tuned for different level ranges with only the post GoT azzy room being 220 content we could have had a fresh and more diverse leveling and grinding experience post 201.