I wouldn't over think your next response -- keep it light. No need to validate her 9 month timeline either. If she wants to move back in before that she will.
I don't know why you're discouraged by that response -- I read nothing in that where she was pushing you away. She's saying "let's take the next several months and figure things out". That's a positive if there ever was one. Better than "I hope you can learn to accept that I'm not coming back". Many people here get that message.
I read her response as overall positive. Keep doing what you're doing and focus on GAL. No more R talk in your response, you already put it out there. For now stick to business and logistics. Make her wonder how you interpreted her response, don't tee it up
Married 18, Together 20, Now Divorced M: 48, W: 50, D: 18, S: 16, D: 12 Bomb Dropped (EA, D): 7/13/11 Start Reconcile: 8/15/11 Bomb Dropped (EA, D): 5/1/2014 (Divorced) In a New Relationship: 3/2015