My suggestion, if it has not already been said: Improve, and update alot of the mission content for Redside.
80% of the missions in the Rogue Isles are what? fight arachnos, fight the circle, fight the freakshow, fight the goldbrickers, fight the skyraiders, etc. Should villains not be fighting heroes, longbow, "the good guys".
I know bad guys do fight other bad guys, but I think the majority of being a villain should be fighting the good guys. I would like to see more longbow, vanguard, epic hero, misc vigilante, etc in the stories. To me, it gets boring and tired to fight the bad guys (most) of the time. Why am I playing a villain? why not just play a hero then?
Another nitpick I have is playing an arachnos soldier. I have a widow and a soldier character, and it bugs me when I play a generic mission from a contact that has me going in and attacking an arachnos base. I know I'm a "Destined one" but still, I'd think this would get you court martialled in a hurry. I think that arachnos characters should have their own story arcs, which is more in line of being a soldier for the organization. Secret missions against longbow, into paragon city, doing hits on hero bases and infrastructure, assassinate key figures (like mayors and politicians).
I am an avid roleplayer and GM. I propose if the community wants to pitch in and work on this as a project, I would be willing to volunteer my time to make the stories and mission write up content, I'm not good at anything else on the development side. We can come together and create alot of nice new story arcs for arachnos, then maybe expand it and make brand new content for the rest of redside.
I think that would rejuvinate things a bit for Redside.
Thoughts?