there will always be “other sheep” who will become the “great crowd” as they emerge from the great tribulation.
TD that is a point that deserves repeating. Only after the great tribulation will it be clear who is part of that crowd in the temple courtyard.
Without a doubt, if one of the anointed unrepentantly falls away, Jehovah does call another individual
That means The new partakers come out of that pool of candidates called "Other sheep", but rev 7 says that the 1444 000 are sealed out of the 12 tribes. so: biblically speaking,
the Great Crowd are the " 12 Tribes of the Israel of God " in the New Covenant.
JWs are "spiritual Israelites" but dont know it, dont touch the New Covenant emblems