Here are some other translations.
Matthew 19:28
(AMPC) Jesus said to them, Truly I say to you, in the new age [the Messianic rebirth of the world], when the Son of Man shall sit down on the throne of His glory, you who have [become My disciples, sided with My party and] followed Me will also sit on twelve thrones and judge the twelve tribes of Israel.
(ASV) And Jesus said unto them, Verily I say unto you, that ye who have followed me, in the regeneration when the Son of man shall sit on the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.
(CSB) Jesus said to them, “Truly I tell you, in the renewal of all things, when the Son of Man sits on his glorious throne, you who have followed me will also sit on twelve thrones, judging the twelve tribes of Israel.
(GNB) Jesus said to them, "You can be sure that when the Son of Man sits on his glorious throne in the New Age, then you twelve followers of mine will also sit on thrones, to rule the twelve tribes of Israel.
(Greek NT TR) ο δε ιησους ειπεν αυτοις αμην λεγω υμιν οτι υμεις οι ακολουθησαντες μοι εν τη παλιγγενεσια οταν καθιση ο υιος του ανθρωπου επι θρονου δοξης αυτου καθισεσθε και υμεις επι δωδεκα θρονους κρινοντες τας δωδεκα φυλας του ισραηλ
(GW) Jesus said to them, "I can guarantee this truth: When the Son of Man sits on his glorious throne in the world to come, you, my followers, will also sit on twelve thrones, judging the twelve tribes of Israel.
(HCSB) Jesus said to them, "I assure you: In the Messianic Age, when the Son of Man sits on His glorious throne, you who have followed Me will also sit on 12 thrones, judging the 12 tribes of Israel.
(ISV) Jesus told them, "I tell you with certainty, when the Son of Man sits on his glorious throne in the renewed creation, you who have followed me will also sit on twelve thrones, governing the twelve tribes of Israel.
(KJV) And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.4
(KJVA) And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.
(MKJV) And Jesus said to them, Truly I say to you that you who have followed Me, in the regeneration, when the Son of Man shall sit in the throne of His glory, you also shall sit on twelve thrones, judging the twelve tribes of Israel.
(MSG) Jesus replied, "Yes, you have followed me. In the re-creation of the world, when the Son of Man will rule gloriously, you who have followed me will also rule, starting with the twelve tribes of Israel.
(NAS77) And Jesus said to them, "Truly I say to you, that you who have followed Me, in the regeneration when the Son of Man will sit on His glorious throne, you also shall sit upon twelve thrones, judging the twelve tribes of Israel.
(NASB) And Jesus said to them, "Truly I say to you, that you who have followed Me, in the regeneration when the Son of Man will sit on His glorious throne, you also shall sit upon twelve thrones, judging the twelve tribes of Israel.
(NIrV) "What I'm about to tell you is true," Jesus said to them. "When all things are made new, the Son of Man will sit on his glorious throne. Then you who have followed me will also sit on 12 thrones. You will judge the 12 tribes of Israel.
(NIV) Jesus said to them, "Truly I tell you, at the renewal of all things, when the Son of Man sits on his glorious throne, you who have followed me will also sit on twelve thrones, judging the twelve tribes of Israel.
(NLT) Jesus replied, “I assure you that when the world is made new and the Son of Man sits upon his glorious throne, you who have been my followers will also sit on twelve thrones, judging the twelve tribes of Israel.
(RV) And Jesus said unto them, Verily I say unto you, that ye which have followed me, in the regeneration when the Son of man shall sit on the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.
I don't know that the apostle and Jews are going to "regenerated", but rather creation will be made new. (New heavens, new Earth).
However to answer your question... I believe ALL the Jews since the beginning of time will be judged here.