Absolutely MUST READ Article From Greg Lauer

The Greek word -- pléróma: fullness, a filling up (further definitions) -- that which fills or with which a thing is filled: so very frequently in classical Greek from Herodotus down; especially of those things with which ships are filled, freight and merchandise, sailors, oarsmen, soldiers (cf. our 'complement')

To put it somewhat in today’s language – think of it like filling car tank with Gasoline. Today, I might say I got a tank of Gas or I stop at the station and purchased a tank of Gas, or I stopped and filled the tank with Gas. Anyone hearing me make these statements today, would understand I have a vehicle which has a tank for gasoline and I have filled that tank with gasoline.

So when we come to a passage like Romans 11:25 “…Stubbornness has come to part of Israel until the full number of the gentiles comes to faith…”

We understand it to mean not just the grouping – Like the Body Of Christ – but the Type of what is being filled. In this case anyone outside of “Israel body”…. It does not mean anyone in the Israel body is automatically excluded – it means God has blinded or harden their heart (Body of Israel) until such a time as all those outside the Body of Israel has had time to come in.

Most have understood this to mean there is a MAXIMUM Count of Gentiles – and when that count has been reached – is when God’s focus goes back to Israel.
No one (that I know of) has claimed what that maximum count is.

When Greg spoke of imminence VS Date Speculation -- he got into some of this

There is nothing saying the maximum count cannot will happen on a certain day – nor is there anything stating once the Max is hit …. The rapture occurs……..