I know the hierarchy were fabricating that empire in renaissance man-but Voyager seemed to be getting relatively close to the BQ by that time. Even so, they had made about the distance.
Taking Endgame's 23 years into account. And assuming that just before endgame they had made 35,000 light years or so.
Out of a journey of 75,000 lyers. Which would mean with forty thousand light years to go-they made about 1739.130 light years per year. In the original timeline.
Given experiments with slip stream, more shortcuts, and various other modifications and boosts-this isn't too implausible. But since Voyager had 16 years left before future Janeway intervened-this would mean they made 2500 lyers a year. For that remaining time. Which is barring more advanced tech(not too implausible) somewhat hard to believe. Then again they could have made large jumps, or gone through the BQ quickly-perhaps even with direct help from the Federation.