They already did. They resurrected 'Voyager' last year, which is just a decontented Pacifica.
https://www.chrysler.com/voyager
For the record, any of the current/past FCA minivans with 2nd and 3rd row Stow-n-Go seats are the most versatile and useful all-around vehicles on the planet, especially if kids are involved. We've had 4 FCA vans (and 2 others brands). They will never be cool, but my wife's Pacifica was a great vehicle anyway (except the occasionally clunky 9-speed). Seats up and carry 6 people comfortably (7 in a pinch). Seats down and it's an excellent cargo van.