We don’t have any plans as of yet. Reading through this, the ability to create a cloudpipe instance is limited to admin functionality. I would think it would make more sense to create an instance, give it a floating IP, and then install OpenVPN on it.
If security is your main concern, you’d be able to configure a security group that only permits traffic externally via the VPN. The other internal-only instances could be configured to only allow traffic other internal machines.