Well, it looks like adding your game to steam isn't a guarantee that a large mass of noobs will come(ql), so reflex is going to have to be very proactive if it wants to attract fresh meat.

If you have any original ideas for casual game modes, post them here
And post which existing casual modes/mods you want to see added to reflex

here's my list so far
1) basketball game mode(always wanted to play one in a "quake" game)
2 ) capturestrike with some changes to make it more skillful and less campy
3) action quake 2 mode(never played it, but it looks like it could be a lot of fun in reflex)
4) lithium quake 2 mode(had a blast with this. i think noobs from today would still enjoy it)