Agree with everyone else. I can't see how a robot/computer could do the relational work that we get with a human and that's so crucial (even if someone uses Skype or those text/messaging services, there is still a human engaging with another human). I don't see how a computer does compassion, recognises emotional nuances, builds a relationship to create a level of trust and safety that a client can begin to "go there".
Any kind of interaction (not just in therapy) has so many layers and nuances....we all have abilities to read between the lines, to pick up on lots of non-verbal cues, to interpret the words we hear, the tone of voice, also to "hear" what's not being said and to find meaning in the pauses, the spaces between the words. Just for these things alone, I can't see how a computer could do that.
I can see how computers might be used for providing a fairly standard resource in the shape of online CBT courses etc. But not for most things. And definitely not trauma. I'm wondering what a computer would do if a trauma client got triggered and went into a flashback or started dissociating during a session...?!
So, no...can't see this happening :-)