of course you know that if the Temple is rebuilt , then will have to come the destruction of the world. many of those that want to see Messiah return will wish they had not prayed for that day. A deciple of the Truth.
what about the rest of the missing 11 tribes [families] . there are a lot of things that must happen before the whole nation of Israel is united. Unfortunately there must be a serious amount of destruction and judgement before this will occur.
Solomon had a copy of the Ark made . This is the Ark that his son took to Ethiopia. Although a copy , the proof will be to look inside. There should be the tablets of the ten words , manna , and Arons branch that budded while in the original Ark. If these three things are inside , then it is the real Ark of the Covenant which Yahweh gave to the tribes.