Roku - Xfinity Stream - away from home?

I'm up in the mountains. Using Roku. I am a loyal xfinity customer but away from home.

Will I ever be able to use xfinity streaming on a TV via Roku while away from home?  

I'm continuing to stay loyal to comcast and pay the big bucks while others are jumping ship. Yall need to make this happen because I'm getting close to joining them. This would be one thing you can do to help 'butter the biscuit'. Thanks for any input...sooo many threads and I'm getting overwhelmed sorting through them all. 🙂