No. This is not how basic storytelling works. When the villain gets their final form and literally says it's time to end the cosmos, you don't randomly go on a B plot.
"Maybe we can go on a B plot to recruit Elune", buddy the Jailer is literally going to remake reality once he crosses that portal, he's not going to sip some tea, where will you find the time to recruit Elune
This is the A B C of storytelling.