Janeway - Promoted to the admiralty and initially placed in charge of a new unit of Starfleet Science reviewing and sorting through all the data Voyager collected, gave quite a few speeches across the Federation about her experiences, taught a class or two at the Academy, before moving into a position at Starfleet Command.
Chakotay - Returned to the former DMZ where he defused rising tensions among the refugees in the region and restored some resemblance of peace and order to the region, ultimately becoming a spokesperson for those who remained in the area and sought autonomy from the Federation.
Tuvok - Returned to Vulcan to be cured and spend time with his family, then took a teaching post at the Academy. After eighteen months back in the AQ he was selected to become the First Officer onboard the newly refitted and repaired U.S.S. Voyager for her historic mission to the Gamma Quadrant.
Paris - Settled on Earth, where he reconnected with his father and became a test pilot for the S.C.E. trialling out new ship or engine designs, wanting to be close to his family. He would remain in the Sol System after Torres received her new orders, being a doting dad.
Torres - Settled on Earth with her family, took up a role teaching Engineering at the Academy under Professor Chapman, as well as consulting on the refit/repair of Voyager. Once the starship was released from dry-dock she was assigned once again as her Chief Engineer.
Kim - Finally got a promotion and took an assignment onboard a deep space vessel.
EMH - After considerable diagnostics at Jupiter Station was assigned to Starfleet Medical.
Seven - Was the object of much scrutiny and study, provided Starfleet Tactical with considerable insight into the Borg. Was assigned to Janeway's unit before taking up a special consultant post with the S.C.E. Her relationship with Chakotay ended very soon after returning to the AQ.
Neelix - The Talaxian colony was assimilated by the Borg two months after Voyager returned home.
Kes - After her older self was prevented from seeking revenge on Voyager she returned home, where she used all that she was to send the Ocampa across the galaxy to the AQ where they were recovered by Starfleet and resettled, with many now worshipping Kes--who gave her life to ensure they survived.
U.S.S. Voyager - Extensively refitted and repaired after seven years in the DQ, which took eighteen months to complete. Once the work was finished a new, though highly-controversial, CO was given command; Erika Benteen. She selected a new crew, including a few old crewmembers, to go on a deep space exploratory mission into the Gamma Quadrant, the first of its kind since the end of the Dominion War.
) than non canon books, which were published about the post-Voyager's journey in DQ. Wel done, Bry_Sinclair! 
i personally completely think that it was Kes, there's no reason to think it wasn't. Her powers took over her, combined with the memory deterioration that comes with their old age are what lead to her being angry.
