The Flash actor Grant Gustin recently revealed that getting to Crisis on Infinite Earths is still their goal.
Seeing Crisis on Infinite Earths unfold is definitely something comic book fans would love to see, but as Gustin mentions, The Flash would need to make it to 10 seasons for that to happen.
For those that don’t know, Crisis on Infinite Earths was the world’s first major comic book event.
They have already adapted Flashpoint, and the only other Flash-centric event that can top that one is Crisis on Infinite Earths.