9 months ago - Rocket - Direct link
I have heard rumors that we may get missions with persistent worlds
It has been confirmed in multiple announcements and updates that exotic earning will be coming to open world with the Hypatia update, that is due after the launch of New Frontiers.

Currently New Frontiers will contain, for the first time, full missions done inside open world. With Hypatia will be back-port this to Styx and Olympus and allow exotics to be earned in open world.

We have to add some content and functionality to support this so it needs more time in testing before we can release it, which is why it is not in the new frontiers update.
9 months ago - Rocket - Direct link
You’re welcome! I have been doing a big play session in New Frontiers to make sure it is ready for you all. I have been really enjoying the open world, and being able to do the missions like that.

It is a shame that Olympus and styx will not have the story missions in open world until Hypatia, which comes later, but it is a necessary evil due to us needing time to test them all and make sure they are okay.