Day one when they are available I will definitely create a Romulan, they are my favorite. I just hope that they will have more PvE than the Klingons currently do. I also hope that they will create better, more Romulan-like hairstyles, combed down is not Romulan and I really hope that they will make an actual Romulan forehead, not the ones that are used from alien creator.
Cryptic needs to keep players around and interested, they will have Romulans, Cardassians, "maybe" Borg, who knows maybe even a Privateering Neutral/No Declared faction, but what they really need is content. What all MMOs seem to fail at.
I'm a Feddie, made a Klingon character but hate PVP queues, I perfer Open/Free PVP. If they add content to Klingons, not only missions, but uniforms, ships, etc I would love to play a Klingon or any other faction they open up. Right now though I am looking at a maxed Feddie, not wanting to play Klingon, and the only thing keeping me around is raids, obtaining better equipment, and wanting to play with friends. If Cryptic does open another faction of an empty shell like Klingons currently it's going to do nothing to keep me around. Fill out Klingon like the Feds before moving onto another Faction. It's kinda funny if you think about it... people complain there is too much fighting in STO vs "real Star Trek", yet the one faction that thrives on battle has no content.
I was just wondering how many Klingon players would be rolling a romulan toon when that faction comes online. I know I will be doing so. I love the Klingon style but also apprecite the polite treachery that only romulans excell at.