It makes sense that you wanted to maintain a single platform instead of two. The only worry that I have is the following.
At work we are using private repositories on travis-ci.com, but we've noticed some noticeable downtimes over the past year, whereas my open source repositories, including a popular one, which run on travis-ci.org, have their build processes actually way faster and more reliable (I actually haven't noticed any significant downtimes).
I don't know if it's just an impression that I have or if it's something that more people have noticed. I really hope that merging the two platforms will let you provide an even better for both pro and open source users.
Thank you for Travis - many open source projects would be worst without it.