Release 1 or a few screenshots. They can even be blurred or shopped for artistic effect or morphed into a pseudo artist rendering. Give people something to chew on and keep them going. I know I'm not going to commit suicide if what I see in a screenshot doesn't make it in game.
Also not that anyone probably cares about my opinion but I'd really be happy if the game supports duel core properly. Use the technology that's been out for quite a while now. That's twice the processing power! Lastly I hope that "teamwork" is as solidified as can be in game 2 because that is ROs fatal flaw IMO. RO right now works when (if) there are skilled players playing. Then teamwork is natural or at the least you have a bunch of elite mercs doing battle which is akin to a quality gaming experience. If not (the most common scenario in pub play) you get TDM R-tard edition.
You cannot expect ANY teamwork from players. Assume that everybody is in it for themselves and build the features to counteract that tendency and promote cohesiveness wherever possible. Game 2 needs easily navigatable waypoint markers (if th game is to be similar to RO) that show up on map & in 1st perspective ala bf2 (project reality to be more precise). Don't bank on everybody having a mic or wanting to use one to communicate information that could realistically be communicated in the game scenario.
To me it seems like a conscious effort has been made either through omission or by design to leave players on their own. While this is fine for me and other hardcore types, casual players will be, have been, and are put off by having to put in too much "work". Sad but true. You can't change players for the most part. Only plan around them.