Our server will only fully wipe if a game update requires it. We are still in the process of deciding how to handle PVE starter planets. Likely they will all be contained in the same orbit and there will be a weekly wipe on the starter planets. This is to encourage players to enter the PVP planets. After leaving the starter orbit all other orbits and planets you encounter will be PVP, save the trader orbit.
On PVE planets you can indeed build bases without fear of them being raided by other players.
Feel free to come chat with us in teamspeak with any questions you have. Connect to thevgg.com