Yes, the promises are now for the "Israel of God", which Paul says was in Galatia and everywhere people belonged to Christ. "Israel" means "Overcomer with God" and is all people who had the same defects of character as Judah, Reuben, Simeon, etc. but overcame them by the blood of the Lamb.
We can't deny the DNA of the 12 tribes was lost in the murky waters of the pagan gene pool through the horrific rape, sex slavery, forced pagan/Semitic marriage, etc., which Literal Israel unfortunately had to endure because of rebellion.
We can't deny human physiology of what happens when pagan DNA sperm mixes with a Semitic DNA egg.
We can't deny history contains no recored of any plan, provision, or opportunity to preserve for over 2,000 years Semitic DNA.
We can't deny the reality it took only a few hundred years for the 7th century B.C. Assyrian holocaust to produce such genetically impure offspring - the Samaritans - that were despised and hated as mixed breeds by purebred Judah and Benjamin - the same circumstances which Judah began to experience in 70 A.D. but continued for not 600 years, but for almost 2,000 years.
