The Red Heifer has been sacrificed, and the Third Temple will be built
There is no need for a 3rd temple, our body is the temple. "Do you not know that your bodies are temples of the Holy Spirit" - 1 Corinthians 6:19
They state “Since there is no longer a Temple in Jerusalem, the rituals of the red heifer—as well as most of the laws surrounding ritual purity—will be applicable only in the messianic era” – Chabad Lubavitch
There is no need for a 3rd temple, our body is the temple. "Do you not know that your bodies are temples of the Holy Spirit" - 1 Corinthians 6:19
They state “Since there is no longer a Temple in Jerusalem, the rituals of the red heifer—as well as most of the laws surrounding ritual purity—will be applicable only in the messianic era” – Chabad Lubavitch