The main idea being that when you create a character the game will ask you where you want to start, the alpha or delta quadrant. This will force players to start from level 1 again and make the expansion worth having. I got to Admiral lv5 in less than a week and frankly it makes for better game play when you are leveling for things.
The entire world map and locals would all be delta quadrant locations and the enemies could be zoned exactly like how you have STO now: Kazan, Borg, Hirogen, 8472, Krenim etc
You even have allied species that can fill in your crew like Ocampa and Talaxian.
As we saw on the adventures of VOY, the care taker brought in many alpha quadrant ships including the Equinox - a federation ship so it would be easy to incorporate a general storyline of why you are there.
You know, I was actually thinking how great having the delta quadrant in the game would be, but still start at earth and maybe have a transwarp to delta quadrant at a certain level, like you have for sol.
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