The order of these prophesied events, is clear. That, in turn, helps us better to understand their character. After first understanding when, we can better understand what.
First, Jerusalem would fall to the (Roman) Gentiles in 70 A.D. At that time, the Judaists would largely be annihilated.
Second, that would be followed by the "time of the Gentiles." During this time — as we are informed elsewhere in Scripture3060 — the "fullness of the Gentiles" comes into Membership of the Christian Church, while part of the Judaists alias ethnic Israel remains spiritually blinded.