I want to switch to CC but it doesn't have near enough feature parity at the moment (the Android app has more functionality for crying out loud) so I'd rather wait while more features are added. Will the promotional pricing for current subscribers be around as long I stay subscribed or is there a time limit?
You mean how long have you got before you can no longer sign up for that deal? No one knows if or whether they'll withdraw that offer. When you do sign up, it lasts a year from that point.