Only God will have the decision on who will get to heaven, not humans. It may be possible for many different reasons. For example, the Jewish do believe in God, but deny Jesus was the Messiah. But, they were God's chosen people up to the 1st century. In my mind, God would not condemn all of his (used to be) chosen people.
The Bible says that if you do not believe that Jesus Christ is your lord and savior, they will not be gifted with eternal life, where eternal life is heaven. Since Jewish people do not believe that their Messiah has yet to come, they can not actually go to heaven, unless they live a sinless life, since being born is a sin.
As with ALL things, only what the Lord says is of any i portants as OPINIONS are completely without TRUTH, and truth IS all that counts.
Isaiah cries out concerning Israel: "Though the number of the Israelites be like the sand by the sea, only the remnant will be saved.
For though your people, O Israel, may be like the sand of the sea, Only a remnant within them will return; A destruction is determined, overflowing with righteousness.
In the same way, at the present time there is a remnant chosen by grace.
Just as the Pharisees of those days, the Jewish people remain today, Not a single individual has maintained Levitical requirement for atonement, since the time of the destruction of the Temple in 70 AD, thus have ALL remained without the atoning of blood, and those WHO REJECT the Blood atonement of the Messiah.
Whoever believes in the Son has eternal life, but whoever rejects the Son will not see life, for God's wrath remains on them.
From the Pharisees past TO the Pharisees present, ONLY the remnant shall be spared! According to the Word of God.
Declared by Isaiah ...ONLY A REMNANT within THEM will return.