well it's easy, current tanks are balanced number wise with nothing important about they performance compared to the DPS and HEALERS so it's normal the first pacth take a complacient actitude with tanks and dedicate all the efforts on adjust and solve the severe number of issues betwen most DPS including gameplay reworks to severe skills.

all being said i expect tanks ajustments on 5.2, DRK desperately need somes same as WAR gameplay wise, DRK need ajustments to make blood weapon 5 hits being more consistent and easy to land, currently it's pretty easy to miss the 5th hit, quietus needs help it's just a simple filler, delirium needs to be reworked and make DRK gameplay don't feel like a WAR one with some magic expenders, ajust to abyssal drain like halving the recast and the potency to add more uses per combat will help on aoe situations to keep a decent sustain on pre-70 content, salted earth needs love, living dead not being a damm pain for AST and SCH and for me add darkside management by nerfing edge potency and removing the darkside time grant on flood so we will have some complexity on the job combined with delirium rework make the job have some depth since it have none right now outside of TBN.

for all tanks remove rampart of role skills and bring back shadow skin to DRK, foresight to WAR and "insert name" for GNB all with 20% mitigation wich will be the same but at least look unique, rampart is so lame depending of the job you play.