VGS!
Love the idea of a VGS system being implemented, Z X C > 1-5 menus would be nice. Z-1 "retrieve our flag" x-1 "get the enemy flag" c-1 "take the flag from me" kinda scheme would be nice, or good ol' vgs.
Skins/Colors
I've always loved the ability to customize RGB values for specific parts of your character model in games; Jedi Academy is a good example. It would be cool to be able to purchase different model clothing, but then be able to set your own colors. This would mean that more models would have to be made compared to just changing the color scheme, but you could sell different finishes like chrome and flat paint to maximize profit per model.
Tutorials
I actually thought Hirez was on the right track with their tutorial section in Tribes: Ascend. Not the terrible "tutorials" that they created, but the community videos section that had "Advanced Capping Routes 1" and other informative videos made by players listed, and would open up a youtube container while you waited for a match to start. Unfortunately they seem to be ranked by total video plays, but something like this with a sorting system based on user feedback would work rather well, and give certain prizes to the highest contributors. No idea what kind of prizes...
I also like the idea of a padawan/mentor system, but that could be difficult depending on where people find the game. I'm worried that steam will split the community somewhat, but steam is necessary. So that is something to think on.
Just thoughts...
Keep up the hard work Justin!