one question i have is how their shuttlepod (which was missing half its systems) made it to earth from Gamma Sepentus (about 37 lightyears from earth) without a navigation system., why it is surrounded by a bunch of debris, and how did the kids survive in that tiny shuttle with barely any room and no supplies for a month?
to be honest it feels like they should have gone for "a few days later" instead of "one month later", and set the armada stuff in the Sol system.
i guess it is possible they salvaged parts off the wrecked ships to jury rig a nav system.. but the "one month later" thing is still kinda iffy feeling.
There's going to be a tie-in novel about their trip from wherever they were marooned to Earth.
Yeah that's a pretty obvious paradox, unless Gwen is really willing to sacrifice her existence for her people.
Star Trek rarely goes by Back-to-the-Future rules, and IIRC, it's set up as an exception when they do (the weird planet from "Children of Time," for instance). Offhand, O'Brien was replaced by himself from an alternate future after his present self died, Nero and his ship weren't affected no matter how much he diverted history away from what he remembered, Admiral Janeway and her future technology continued existing even after she went back in time and began changing history immediately...