It currently heading eastbound at Bathurst as a dot which is saying, still in testing. I did say sometime ago, I expected the car to enter service about March 2 or 3rd, depending on testing and burn. Looks like March 3rd.
Since Lake Shore is out of service, TTC has to find a route where they can do more burn in faster. Looks like 512 & 509 are those routes, especially 509 with the layover track at the EX loop.
Update:
Its been said that the car did enter service yesterday.
It was a dot when it arrived at Fleet loop, and has an arrow going east from the loop now.