I don't like the idea of the giant starstationship. Its either a ship or a station, both is just overkill IMHO. I could understand a station being constructed as a supply base, repair yard, command outpost and launching platform for missions in the region.
Or have a brand new 'Gargantuan'-Class ship leading the charge into the new galaxy, with a couple thousand crew onboard to handle all matters of security, research, diplomacy, etc, whilst also commanding the fleet.
If Trek does jump off into the future for the next series I would hope they avoid the "I'm the great-great-great-great-grandniece of James Kirk" or "I'm the illegitimate great-great-grandson of Deanna Troi", a new Trek series should be a new