Fan Casting Godzilla vs SpaceGodzilla

Two Months have passed since the defeat of MechaGhidorah, and Earth has been somewhat at peace. Godzilla has been keeping the balance of nature with his family, along with Godzilla Jr building his relationship with Madison. However, a growing threat is approaching the planet, and one messenger from space has come to warn earth's protectors before It's too late. But even then, the Titans are still on edge due to a near alien invasion. How long until they realize the true threat to Earth is yet to come?