@grizzlypk I think we can expect, that monsters will be in open world, that you just can kill when you have some friends around.
Also they said, there will be resources, that is obtainable just at a special planet.
So there will be reasons to go there, even you are a friendly Beastman who never do anything bad.
Well, you also just can find someone who sells you the things you need...
But it is way more exciting to travel by yourself into a big adventure.
Also there will be another reason, it is called Knowledge. There will be Knowledge you just can get, if you go to dangerous areas.
And then there are Towns, and there will be fights about resources, so you will get much to raid in PVP at Tartaros, but also you probably need to fight at the other Planets for different reasons.