Getting back to the main topic, this model of expansion (releasing campaign sets that offer retrospective updates to existing models) could be used to release new variants of existing ships. With the Victory, for instance, we could see some kind of retrofit model that offers greater speed or manoeuvrability, with adjustments to its arsenal or stats, and certainly at a higher point cost. This would be very much in line with cannon (Victories' engines were updated during the Civil War to correct this issue and enable them to fight in deep space), and would balance out what many feel to be an issue with the Victory.
I'm not sure if this will happen, but certainly if they're planning on releasing other campaigns in a similar format, this is an option they've given themselves.
I was exactly thinking about this too just now !
I actually do like buying upgrade through campaign sets. And to be honest, I wouldn't be surprised if FFG is testing the waters for a competitive campaign/league format which would be very very interesting. The problem with tournament is that they don't give context or purpose to upgrades, except for statistical advantage. Themed scenarios within game mechanics (on top of objectives) would be pretty groundbreaking for a standard format. Picture Zombicide campaigns but on a national/worldwide scale.