Russell taught and believed that the Jews would be restored to Israel. The bible does say that and it did end up happening.
Rutherford dropped that teaching about 5 years I think before it actually happened.
The scriptures about unless those days were cut short no flesh would be saved but on account of the chosen/holy(don't have bible handy atm to read it) those days will be cut short.
If memory serves me right the natural jews are called the holy or chosen in early christianity. During the holocaust they were being exterminated and if those days were not cut short and Nazi's defeated, none of them would have survived.
Also I believe the extermination camps were from 1941 to 1945, possibly 3.5 years, and a ton of those prophecies points to the middle of a week 3.5, or time times and half a time which is 3.5, or 42 months 3.5 years, etc.
Also the 1,000 year reign is different in the scriptures then how the WT taught. With human governments and kingdoms still around during that time and by the end all submit to God. If it is all true then perhaps it began after WW2 and the world will have slow improvements over the next 920 years.