Will there be enough to do in full game?

while the beta and darkzone have been great fun, it can and does feel very empty after a while. Will there be more and interesting objectives? or always.. go here and kill enemy?

after playing Witcher 3 and its amazing side quests and interesting things to do, I am worried this game will have no more diverse quests after the beta... am I wrong? Somebody put my mid at rest please.