Warrrior imo just needs a really big self heal buff, there supposed to be blood tanks but fail miserably in that regard outside of normal world mobs

buff inner beast to 300% self heal
buff blood to 50% seal heal
nerf defiance to 10% heal bonus or maybe even remove it, if you can can heal yourself better then healers wont need to heal you as much so the defiance buff isn't really needed

imo warrior was a failed design from SE, they had a vision on what they wanted it to be but never quite pulled it off, they then altered the class so its survival was better, but they didn't carry on down the same self healing road they had in mind at the beginning

drk is gonna most likely be the tank they initially wanted warrior to be but didn't quite get it right