I really don't think we need to be running to TrueCrypt alternatives quite yet. If Phase II of the audit comes back showing TrueCrypt as insecure, then it's time to start worrying about that, but given that everyone was happy to keep using TrueCrypt up until 1 day ago even though it hasn't been updated in over 2 years, I don't think there's any big rush to switch to something else even if ongoing development stops.