Lots of more planes comes with lots of more routes.
I have heard we are getting a few more gates out of EWR after WN is pulling out.
https://www.google.com/amp/s/www.nj.com/essex/2019/07/southwest-is-ditching-newark-airport-will-other-flights-cost-more.html%3foutputType=amp
...and because I guess I’m known for my (horrible) guessing of where we are going to launch next I will say:
SLC, ANC, and YYZ