TheTigerMaster
Superstar
Although this video is only 2 months old, it does not confirm that Crosstown East will be a priority over other transit infrastructure. But it does show that city council is committed into extending the line.
On the other hand, there's no video for Crosstown West. Which doesn't mean it's not on the radar (announcement videos are pretty rare), but we can't count it out yet (it's still lower priority compared East IMO).
However Crosstown West is part of SmartTrack, which is Tory's baby. Also Crosstown West appears to be further along in the design process. We haven't heard much about the design of Crosstown East, while we have tons of reports on Crosstown West. Furthermore, Crosstown West has funding while East does not.