I have never used rewire, on the programs i own that use it, i alway found it kind of difficult to use, and resource hungry. If I had my way i would respectfully ask that before you add Rewire to this system, please make it function better with VSTi technology. There are still VSTi products that i would and i am sure others would love to use, that do not play well in RB or PTPA.
Both BiaB, and RB are very useful products, and have so many wonderful features, i use both all the time, but still RB suffers from some levels of instability compared to many other DAW programs, please work on these issues first. I know that due to RB's implimentation of BiaB features and RTs, and RDs, that it is a tad more complicated than a simpler DAW like a Cakewalk MC, or such, but this is precisely why making the program a bit more robust and dialing in the VSTi implimentation would pay off in the long run.
These are just my personal opinions, yet i feel they have merit. Respectfully yours, Rob Helms