That's what I've heard, but from my perspective, it'll make more sense to run it internally, especially, if there are already Docker capabilities built-in.
It may even make more sense for CP to release a stand-alone Gaia image with Guacamole baked in for this particular purpose.
Not all organizations have containers running in their environments, but nearly all could benefit from clienteles RDP and SSH (and may be more HTML5 app) capabilities.
Keeping a lid on security aspects of this implementation, reducing 3rd party dependency and reinforcing branding seems like a good deal to me.
If developed further, it should also make it easier to compete against Pulse Secure.