That's a damn good question, which should be brought again, like in this post
To save everyone some time, I really, really, doubt you're going to get an answer to that question. I also don't know what the expected playlength is compared to KotOR1. I'm not really sure how the areas compare in size either. Those are all design questions, and I imagine most of those details are going to be intentionally withheld for a long time yet.
-Akari
Thanks for an honest answer, it's quite rare that devs say "I ain't gonna tell you", instead lurking in the shadows while the community is in disarray