I would interpret the CCOM "interview waitlist" as being the "slow reject" pile. I have been interview waitlisted there for about two months, with a 3.4 cumulative, and 30P MCAT. Good luck.
I would keep bugging them to keep your app at the top of the pile and to let them know that you're still interested, but they're probably swamped with new applications at this point, and it would be easy this late in the game to have your app lost in the shuffle. Bug them. A lot.