This is where I completely disagree. We were shown what life would sort of be like for them in the alternate future with Admiral Janeway. It would've been like that, except with all of them there.
The whole point of the show was getting home. That moment when they finally reach Earth and even Janeway herself is in disbelief and shock, "We did it," is just amazing.
The final shot being of Voyager slowly moving towards Earth, their ultimate goal, surrounded by Star Fleet vessels; no longer alone. It didn't need anything else.