They're getting added in an update, along with the After Stories (which contain them), which should be in a week or so. Don't worry, you will get them in due time.
Viewing post in Changelog 'FullService Release 1.1 PC' + FAQ comments
Because, they fist correct the bugs resported by the comunity, if they add the rest content and don´t fix first the bugs the game would be imposible to play. Regulary take around two to three weeks for fix all the bugs in all the games. For the moment is important report in the site all bugs you notice.