Does that imply that the status of these planets can change as we go along [with Terra only initially being PvP-free]?

That totally implies that.

Or maybe is that just on Prime? So, on Prime it would be PvP-free, but on another landing zone, maybe not.

Yeah, we definitely want to push that, right? Where it's like, okay, you're going to expect if you land on this planet that you're not going to be able to shoot your way, but on other planets it's a lot looser and it's just kind of Wild West. I think it'd be interesting to have both extremes. And we'll have space stations in the initial Persistent Universe stuff at some point where you can fight all the time. Think about it: as the plot of the game actually evolves, who knows what could change about different planets as time goes on.