With 3 Strongholds confirmed, that'll last one weekend.I am guessing that the Strongholds stuff with multiple difficulties will keep people going but I don't expect Bioware to hide the endgame too long. Also, the Shaper Storms could be in multiple times of gameplay so they might mix things up a bit. Will be good to see a content time-line.
Games like this always leave me on the edge, I really enjoyed my time with the demo but again there is the sheer lack of content. If majority if the game is going to be story missions which range from forgettable to just filler, not sure if it's going to be worth anyones time.
I hope they can ease some of the concerns soon.