Yes, Judas felt remorse after the betrayal, but he never repented of his deliberate sin. Consequently, Judas is not worthy of a resurrection.
وَرَغْمَ أَنَّهُ شَعَرَ بِٱلنَّدَمِ بَعْدَ ذلِكَ ،‏ فَهُوَ لَمْ يَتُبْ عَنْ خَطِيَّتِهِ ٱلْعَمْدِيَّةِ .‏