I might get around to writing it sometime, though I'd upset a lot of VOY fans as I've replaced many of the main characters (or actors). My main cast going into the YoH would be:
Captain Elizabeth Shelby (played by Elizabeth Dennehy)
Commander Calvin Hudson (played by Bernie Casey)
Lt. Commander Tuvok (played by Tim Russ)
Lt. Commander Aiva Stadi (played by Alicia Coppola)
Lieutenant Nathan Hawk (played by Neal McDonough)
Lieutenant B'Elanna Torres (played by Roxann Dawson)
Lieutenant j.g. Samuel Lavelle (played by Dan Gauthier)
The Doctor (played by Richard Armitage)
Neeix (played by Sam Worthington)
Kes (played by Jennifer Lien)
Seven of Nine (played by Wentworth Miller)
Out of curiosity, why replace Jeri Ryan? Unless you're planning to take Seven of Nine in a radically different direction than the show did. Which could be interesting.
Also, I love the first name you created for Stadi. I am (hypocritically) tired of all the non-canon sources that declare Stadi and Jarrot more human/Betazoid hybrids like Troi and give them human first names like Veronica or Juliet. (I'm a hypocrite here because I made crewman Jor a human/Betazoid hybrid in my fanfics, but for specific continuity-related reasons.)