Interactive maps as you suggest will sort-of be in the game. You'll be able to scan systems to perform research, but you'll also be able to do it against enemies such as the Crystalline Entity. You'll be able to build research stations near to stellar phenomena to increase your research output as well.
I can also say that we have big plans for the random events. The problem with those plans is their implementation, because we still don't know what will actually be possible in the game. In the mean time though, we've been writing a list of events that *could* be in the game. Whilst I admit I haven't really touched the randoms since Demcember, I can confirm we already have the Dyson Sphere in as an event. We have quite a few "alien" events too, including;
- The Borg
- Sphere Builders
- Species 8472
- Giant Amoeba
- Gomtuu
- Jellyfish (From TNG Ep. 1/2)
- Crystalline Entity
- Doomsday Machine
- Husnock
- Calamarain
- Echo Papa 607
- Cytoplasmic being/void
- Q
- Space Pirates
- The Alien Shipyard (From Enterprise)
Feel free to suggest additions to the list. Have a look at the full list
Here. We also have a small number of random events where immediate player interaction is required. These random events could be considered as "missions". These include the Alien Shipyard (Where your ships can be repaired - in exchange for resources and some of your crew, which could potentially have serious morale implications), or Encounter the Omega Particle (Where you can choose to destroy it, or perform research and run the risk of collapsing subspace). We also have another system that we haven't really announced yet...
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