I think they just need to make 2 tiers of Raid content - the LFG version where you get the "catch-up" gear, kind of like how current Alexander exists, and then the more endgame oriented version where you take a small group in and spend some time in there. Sort of how WoW's Ice Crown Citadel worked where you went in and fought trash and each boss had a checkpoint where you could pick up again for the rest of the week. I just miss the "raid feel", and arena-based boss fights do not give any sense of adventure. Sure it feels good to finally win after hours and hours of getting everything just right, but that isn't a raid.