How many people would think it would be cool if you were a tank you used your taunt on an enemy player and they automatically target you so that way the healer or dps can get away. Then i think we would see a rise in the amounts of tanks in the servers because now they can truly be helpful and this would reward the player with some bonus achievements to improve their score in Warzones.
Another tactic bioware could use is, now this wont happen for a long while due to the hard work it takes to program something like this but, pvp encounters. For example anyone who did the bonus series for Nar Shaddaa and completed all the heroic 4's there know what i'm talking about from the Republic point of view. Because for one of the heroic 4's we had to invade an imperial stronghold in order to take the elevator to the quest. Bioware should have more of these events where empire and republic toons engage each other in random combat. It would act sort of like warzones but everyone gets an invite and it would say something like taking empire/republic base click yes or no. Then it would be divided by levels so the 20-29 range would attack some outpost and then the 30-39 would attack a different one and only if you were in that level range could you attack or defend the base or recieve the invite. While this is happening though the taxi for that base is deactivated so no 3rd party participants outside of the level range can participate then when it is over the winner gets rewarded and the loser gets rewarded. Every one is teleported away back to where they were before the invite and it seems like nothing has happened. It could be intteresting.