User blog comment:JMOfficial/The Flash Season 4 Hopes/@comment-1330227-20170527001518/@comment-27104941-20170527002337

Understandable. I hope instead of automatically reintroducing Barry, they have show up throughout the season in dreams, flashbacks, and Speed Force visits.

I hope Bart is introduced soon, especially if Wally becomes Flash.

That's why they would have multiple villains, so he isn't the main villain but just one. After all, when I was writing this, I imagined the Thinker's death/Godspeed's introduction as episode 12/13.