In the flash comic con real they showed a blue streak running though the city. In one shot it can be seen running toward the camera. If you freeze at the right time you can see that they have a flash suit. However if you take the new flash suit they were showing at comic-con you can see the white spot and identify that it is Barry. Now this raises a lot of question but all shell be answered soon, hopefully.
There is also a photo up close showing the same mask as Barry and eobard, nothing special here, just thought I would say.
if you want to see these stop at 5:04 on the new trailer