First off Voyager wasn't anywhere near as good as DS9 or TNG.
If a Galaxy class ship was sent, it would have been TNG on the other side of the galaxy. Nothing "new", even if Voyagers new stuff sucked.
The problem with ST is they are stuck in the same era of the ST universe. Enterprise was ~2150's, ToS was 2260's, but TNG/DS9/VOY all took place in the 20 year span between 2360-2380. We have been stuck in the same little 20 year period in the universe for effectively 20 real years (1990-2010). Give us something new, and not the alternate timeline reboot. Although that could work too.