First of all there is a Teamspeak room all garnished to our pleasure.
There is no commitment to anything. You can still be a Vatsim member and fly for them and fly for RWATC.
I'm in this situation for months b/c of my virtual airlines. I will be in ATC Training this fall for New York Secter in ATC. So I would love to see your Air-Source flights in my sector next year.
Cheers!