To be clear, I never said that I think this book will only focus on Betsy. It seems that Tini has a lot of love for all the characters in the roster. I was just voicing what I think might happen with Rogue during this first arc, judging by the solicits and promo art already released. Rogue's subplot might take her out of action for a few issues. Or not. I don't really know. Just a feeling.
And Legacy was definitely advertised as a Rogue focused book, following the footsteps of Xavier's Legacy.