My guess would be that an LTS sale will precede the LoR launch. That way people can buy the LTS before they learn whether or not the enjoy the LoR content.
I am not saying the Rom launch, and even the expanded KDF Faction, will be disappointing. I am simply saying that hyped player expectations are seldom met in any update. Having a pre-launch sale takes advantage of the hyped wave.
STO is about my Liberated Borg Federation Captain with his Breen 1st Officer, Jem'Hadar Tactical Officer, Liberated Borg Engineering Officer, Android Ops Officer, Photonic Science Officer, Gorn Science Officer, and Reman Medical Officer jumping into their Jem'Hadar Carrier and flying off to do missions for the new Romulan Empire. But for some players allowing a T5 Connie to be used breaks the canon in the game.