have riot made the new tank meta already?

so tanks are one of the stronger roles in league we can all agree on that. a poppy for example can take down the adc or mid carry fairly easy. or what about tank bruisers like jarvan or rengar. with the new GA that gives ad they now got a karthus passive and with some tanky items like spirit visage or randuin's omen they get quite tanky and got the dmg output to actually one shot the mid carry. it feels like the new meta is building tanky and some dmg and you are unstoppable. its no longer good building full ap or ad on any champ anymore.