If he accepts the offer, then he will become an unrestricted free agent at the end of the season. However, the extension of a qualifying offer cannot go past March 1. If the deadline passes and the qualifying offer is neither withdrawn nor accepted, the player continues to be a restricted free agent. However, the Warriors extended a qualifying offer for each of the last five years. That is why Kuminga will either accept the qualifying offer, or accept a contract from either the Warriors or another NBA team.