Take it with a pinch of salt... But Admiral Janeway herself maybe making a cameo in Star Trek Picard!
[https://wegotthiscovered.com/tv/kathryn-janeway-return-star-trek-picard-cameo/](https://wegotthiscovered.com/tv/kathryn-janeway-return-star-trek-picard-cameo/)
It's not confirmed, but it seems to be from a reliable source. It would definitely be amazing to see her back, even if it is just for one episode.
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Also, The Doctor might also make an appearance (link to a story I previously posted):
[https://wegotthiscovered.com/tv/voyager-star-star-trek-picard-season-2/](https://wegotthiscovered.com/tv/voyager-star-star-trek-picard-season-2/)