this feature would just be a mirror of the existing functionality in Orion's macOS version where you can press the share button and open the current page in Apple News. this would significantly enhance the mobile Orion experience for Apple News users, since right now if you're sent an article link or come across one naturally while browsing, you'd have to find it in the News app manually.
with a news article open, the user would press the share button and choose "Open in News", just like in Orion on macOS or Safari on macOS/iOS, and would be taken directly to the same article in the News app.