IMHO, when Scripture doesn't speak more to a particular issue, then perhaps our attention is misdirected from a more important issue being revealed in Scripture.
Accordingly, I tend to believe Judas' status is between him and Christ and will be resolved at the bema seat or the Great White Throne Judgment.
If Judas was saved, then he may have slipped into the sin unto death, wherein he served no more useful purpose prior to his first death here on earth. If he remained condemned from birth, then it's a moot point and he'll suffer the Great White Throne Judgment.
I don't find any redemption through Judas.
You don't have to wait for judgement day to know the fate of Judas. The gospel writers are universal in their description that there was no repenetance, and therefore no salvation for Judas. It's a very sad story, but true.