The 1st expansion of Destiny went live this week. I have not purchased the expansion yet. The Daily and Weekly heroic quests and Nightfall show locked now. I'm not sure if I want to purchase the Expansion especially if parts of the game are going to be disabled if I don't keep up with purchasing the expansions.
You will. The daily and weekly activities will rotate between original and expansion content. According to the Bungie Weekly Update this week:
Daily and Weekly Heroic Activities
- Featured activities will rotate between old and new
- Next week will feature Destiny launch content