The question of readers article in June JWs only WT magazine (the one which is studied in August) deals with Romans 11 : 26 where Paul writes that "all Israel will be saved".
As we know, if CT Russell believed that this statement was to be understood literally and he expected the Jews to convert to christianity as a sign of Christ's return, the current position of the WTS, as explained in this QFR article, is that "spiritual" Israel and not fleshly Israel is what it is about in Rom. chapter 11 and Christ's return will be marked by the completion of the whole number of the 144 000 anointed.
Now, during that boring WT study about authority, I set out on reading that whole chapter 11 and it seems to me that what Paul meant was that Jehovah's undeserved kindness would be extended to the fleshly jews, as a people and not as individuals, on account of God's promise to Abraham, albeit their having rejected Christ. Verse 12 looks quite explicit : "Now, if their false step [having put Jesus to death] means riches to the world [covenant extended to gentiles], and their decrease means riches to people of the nations, how much more will the full number of them mean it !" and verse 32 : " For God has shut them all up together in desobedience, that he might show all of them mercy".
That example, IMO, is quite telling of how the WTS is twisting the scriptures and quotes bits of them out of context, so as to make them fit with what this organization has decided them to mean, against scriptural evidence. Now, if literal Israel has to convert before Christ's return, we're not on the eve of the latter as yet...