I'm going to wait for both expansions to be released, and then play the entire game again.
This will mark one of the very few times in history I've actually re-played a story based RPG. Other incidences...
1. Planescape Torment. Immediate replay after first finishing it.
2. Mass Effect 2. Started a replay after finishing it, got bored halfway through. Did a full replay prior to ME3.
3. ME3. Replayed it again with the extended cut to see if I got a "proper" ending feeling with build up. I did not.
4. Fallout: New Vegas. Played it again with mods/all expansions. Didn't finish, got bored/annoyed with Old World Blues.
Ironically, one of the four times in thirty plus years of gaming I've double-played a story CRPG, it was a really bad one. Stupid ME3.