I got hold of the First Season of Doogie Howser on DVD and I'm making a go of it, (It's aged well.) wherein "Ensign Janeway" is wandering in and out of the episode run, but it got me thinking... What if the Kathryn Janeway we are familiar with is already from an alternate future who came back to make things better, and replaced her younger self aboard Picards Enterprise, while retaining her rank she earned from the Future?