Having flown Romulan quite a bit, they do not need more maneuverability. That's ridiculous. The Romulans can't have their cake and everyone else's too.
Romulans, contrary to popular belief, are far from inferior, or devoid of disadvantages.
1.) Cloaking device. Sure, it ain't so hot right now with the bugs and the ease of probes, but if you stay out of the person frontal view, keep distance, move position a lot, and actually decloak when to fire at appropriate times, then romulans are pretty powerful.
2.) Plasma torpedoes, despite this so called 'horrid' hit rate, actually does hit quite a bit, and does a good deal of damage. The truth is, it's not a long range weapon meant to be fired at even light angular velocities. Don't fire unless you know your shot is pretty much dead on, or you get a tractor to bring velocity to zero. Don't fire while at point blank range, that hikes velocity up to 100. Don't fire when you're still turning. Etc. etc. etc.
3.) Disruptors recharge rate is not the best, but the damage is pretty decent, especially if you overload.
Giving roms, especially their bigger ships like the warbird, more maneuverability is crazy. We'd be giving them the most powerful heavy weapon in the game, along with a nice cloaking device, and then the ability to run circles around their opponents to boot. That's asking for trouble. Warbird has only three heavy hardpoints. Yes, and there's a reason for that. You can load it up with heavy plasma if you wanted. That's incredible crunch power, I hope no one gets hit with that. If they had anymore heavy weapons, we'd all be screaming for our lives. Add on a cloaking device to escape our aim and appear behind us. No, the romulans are just fine, thank you.