Currently in the game, there are only 3 Resistance ships. It would be awesome to see some Ace ships from the Star Wars Resistance show. At least this way the Raddus would have more ships to synergize with.
Since many new to mid-game players would go for GL Rey, the Raddus being one of the requirements, doesn't really have a lot of options since there are only currently 3 Resistance ships. I'm sure people can figure out more ships to add to the Resistance, but I think this would be a good start.