Just make the shield move last more than 2 seconds make it about 25 seconds . Templar is my main and only character v16. Having last that long would give us time to fight enemies in pve and those NB and shield stackers in pvp.
For tank templars and for possible hybrid builds the one thing that I can see that needs fixing is the health bonuses, make it more than just how much health you have, increase health regen or something, make it more useful than it is now, then tank templars and hybrid builds will be viable again.