Actually, before I delve into that prospect, I'd like to address the issue with Judas. I don't think believe Judas started out as bad as people paint him to be. I believe in the beginning when he was called out by Jesus, he was a fervent believer in what Christ represented. I mean he went out with the rest of the disciples and performed miracles in His Name. But I also think that Judas thought the Kingdom of God would be established right then and there, with Jesus eventually proclaiming Himself King. It was only after Jesus began to speak of being delivered up to be crucified that Judas began to turn. I think that bit of news got him disillusioned and confused. Jesus was not what he expected Him to be. And maybe he got a bit miffed at Jesus for letting him believe that He would overthrow the the current regime and take over, but that wasn't to be. So Judas by this time was looking for an out. And I can understand when he went to the chief priests and scribes that they may have further influenced him that Jesus was a bad idea for Israel, in light of the Roman oppression. The attraction of the thirty pieces of silver was that he could break from the movement and start over somewhere else, possibly with the Zealots, a move he would later regret.
I believe that even without Judas, Jesus would have eventually been crucified or killed in some way. Jesus even asked those who were about to arrest Him why they didn't do so earlier, since they could have done so when He preached in the synagogues. But the consistent reason all throughout the Gospels was for fear of the multitude. So it was a matter of convenience, since He was arrested, tried, and sentenced to be crucified in the space of one night and one morning, away for the most part from the faithful crowd, while the sheep were scattered. It happened so quickly that any resistance from the faithful would have been ill-advised. Add to the fact that the Passover Sabbath was nigh, the matter would be dealt with swiftly and conveniently.
You are asking if there was no crucifixion or resurrection. And you are supposing that if Judas wasn't involved, then Jesus would not have been killed. I would have to disagree. As Messiah, He would have had to do what Judas had expected, overthrow the current government and established His Kingdom. But it wasn't His purpose to bring the Kingdom by force, but rather induce into the hearts of the people the 'spirit' ofthe kingdom. That's why He taught the was He did. To show compassion to all, to love one another and love your enemies, trun the other cheek, forgive one another, all that. Because before one could lead, the hearts of the followers must follow.
He already told them that John would be Elijah to come, if they received him, but of course they didn't. This is in reference to Malachi 4:5-6 in which Elijah would turn the hearts of the fathers to their sons and vice versa, 'lest I come and smite the earth with a curse'. So now we wait for Jesus to come back, not in any meek fashion as before, but in all the power and glory of God. But before He does, the real Elijah will come to prepare the way (Rev. 11:3-12)