Yes, I believe Judas, as with all the twelve disciples, is saved. Jesus would not appoint a Kingdom to Judas as He did in Luke 22:29 if he were not saved. In addition, I do believe an important principle is to be gleaned from the Judas episode. I heard a wise preacher preach on this and I still have the notes. To keep this brief I will cite only two passages and state my thesis.
Passage 1:
1Sa 2:27 And there came a man of God unto Eli…
1Sa 2:29 Wherefore kick ye at my sacrifice and at mine offering, which I have commanded
in my habitation; and honorest thy sons above me, to make yourselves fat with the chiefest of all the offerings of Israel my people?
1Sa 2:30 Wherefore the LORD God of Israel saith,
I said indeed that thy house, and the house of thy father, should walk before me forever:
but now the LORD saith, Be it far from me; for them that honor me I will honor, and they that despise me shall be lightly esteemed.
Passage 2:
2Ki 20:1 In those days was Hezekiah sick unto death. And the prophet Isaiah the son of Amoz came to him, and said unto him,
Thus saith the LORD, Set thine house in order; for thou shalt die, and not live.
2Ki 20:2 Then he turned his face to the wall, and prayed unto the LORD, saying,
2Ki 20:3 I beseech thee, O LORD, remember now how I have walked before thee in truth and with a perfect heart, and have done
that which is good in thy sight. And Hezekiah wept sore.
2Ki 20:4 And it came to pass, before Isaiah was gone out into the middle court, that the word of the LORD came to him, saying,
2Ki 20:5 Turn again, and tell Hezekiah the captain of my people, Thus saith the LORD, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will heal thee: on the third day thou shalt go up unto the house of the LORD.
2Ki 20:6 And I will add unto thy days fifteen years;
Thesis:
What we see in these passages is a principle in scriptures that often promises (and sometimes even warnings) contain implied conditions; they are not necessarily absolute.
While Judas was among the twelve appointed a kingdom by the Lord:
Luke 22:29 And I appoint unto you a kingdom, as my Father hath appointed unto me;
Judas betrayed the Lord. (Which Jesus knew he would as he stated
prior in verse 21 when He made this statement of appointment in verse 29,
later.)
If Judas had only repented to God and gone on to serve the Lord I believe he would have kept his appointment. However Matthew 27:5 states:
Mat 27:5 And he cast down the pieces of silver in the temple, and departed, and went and hanged himself.
I realize Matthew 27:3-4 states he repented of his betrayal but killing yourself is an heinous final act that one cannot repent of. For that reason it is unlikely to me that he would retain his appointment in the Kingdom.
My larger point here is that the 1000 year Kingdom of our Lord (which is to complete the 7000 year plan for man gaining dominion on earth) is conditional to gain entrance to it. And God is very prolific in His scripture in providing both blessed promises and warnings in this regard to Kingdom entrance. Praise Jesus because of
His work at calvary, for those who believe, our position is secure with Him for all eternity thereafter.