Poor Volcarona, even in a SR-less metagame, someone else will steal your spotlight. Offensive Dragonite counters any non-HP Ice Volcarona set, while SpD Dragonite counters even ridiculous shit such as +1 Ice Gem Hidden Power Ice.
Talking about Dragonite, SpD Dragonite is going to be such a beast. It takes care of offensive threats such as Venusaur, physical Victini, and Volcarona, while being a superb special wall in general that is immune to any kind of hazards and will always take the initial hit for half damage when switching in.
Also, RestTalk Gyarados and defensive Gyarados in general just got a ton more viable, being a wonderful check to most physical attackers and having many good support options (Taunt, Dragon Tail, Roar, Thunder Wave).
Both defensive Dragonite and defensive Gyarados are going to appreciate cleric support of 'course, so Pokemon such as Celebi, Blissey, and Chansey are good teammates.
I think bulky offense will be excellent in this meta, while stall and HO are going to take a hit.