Imo what can make titans better in PvP are some easy tweaks. Like defender titans having tracking or less delay on suppression grenade = all supers almost null in PvP vs them. Or letting defenders have the juggernsught because having it in striker kinda sucks and makes no sence vs shoulder charge and unstoppable. As for strikers? Maybe letting death from above home in on people within range and BOOM those two talents are not relevant in PvP :)