I'm skeptical. The linked article is sensationalist and cites no scholarship. It calls the text a "Bible," when it appears to be a Gospel (a copy of the Gospel of Barnabus)--they're not the same thing! If the writer can't get something elementary like that right, I don't find them very credible.
Second, the article mentions that the article was seized from a gang of smugglers. So, we have no indication of the book's provenance (where and when it was found originally) It's also in really
good condition for a text that old. Oh, and it's in an Islamic country and "just happens" to confirm Islamic beliefs.
OTOH, it's possible that Islam could have been descended from the sect that produced this book, if it turns out to be authentic. Some of the teachings described did exist in other sects, such as the Ebionites, and there were Gnostic sects that taught various versions of Jesus making his save vs. crucifixion. So...it's not impossible, but after the James Ossuary, the Lead Codices
, and apparently now the "Jesus' wife" fragment
, this one's setting off my BS Detector.