What changes are coming to Symmetra?
Ultimate: The teleporter works as before, but now you have the option to change it from a teleporter to a shield generator that has a "huge range" and ignores line of sight. This is a big deal for those 2nd points where your spawn is close enough to the objective on defense that a teleporter is worthless. Teleporter health is now partly shield health that can regen and has slightly more overall health.
Shields: Gone. Replaced with a Rienhardt-esque shield that travels along the ground in front of you.
Turrets: Stock up to 6 now, all 6 available at match start, no more waiting until 2 seconds before the offense comes out before you can place your last turret.
Primary fire: slightly longer range.
Secondary fire: No change