Here’s the latest on it from Live Science.
A text that may be the oldest copy of a gospel known to exist — a fragment of the Gospel of Mark that was written during the first century, before the year 90 — is set to be published.
At present, the oldest surviving copies of the gospel texts date to the second century (the years 101 to 200).
This first-century gospel fragment was written on a sheet of papyrus that was later reused to create a mask that was worn by a mummy. Although the mummies of Egyptian pharaohs wore masks made of gold, ordinary people had to settle for masks made out of papyrus (or linen), paint and glue. Given how expensive papyrus was, people often had to reuse sheets that already had writing on them.
In recent years scientists have developed a technique that allows the glue of mummy masks to be undone without harming the ink on the paper. The text on the sheets can then be read.
The first-century gospel is one of hundreds of new texts that a team of about three-dozen scientists and scholars is working to uncover, and analyze, by using this technique of ungluing the masks, said Craig Evans, a professor of New Testament studies at Acadia Divinity College in Wolfville, Nova Scotia.
“We’re recovering ancient documents from the first, second and third centuries. Not just Christian documents, not just biblical documents, but classical Greek texts, business papers, various mundane papers, personal letters,” Evans told Live Science. The documents include philosophical texts and copies of stories by the Greek poet Homer.
The business and personal letters sometimes have dates on them, he said. When the glue was dissolved, the researchers dated the first-century gospel in part by analyzing the other documents found in the same mask.
[…]The technique is bringing many new texts to light, Evans noted. “From a single mask, it’s not strange to recover a couple dozen or even more” new texts, he told Live Science. “We’re going to end up with many hundreds of papyri when the work is done, if not thousands.”
[…]Evans says that the text was dated through a combination of carbon-14 dating, studying the handwriting on the fragment and studying the other documents found along with the gospel. These considerations led the researchers to conclude that the fragment was written before the year 90. With the nondisclosure agreement in place, Evans said that he can’t say much more about the text’s date until the papyrus is published.
[…]Evans said that the research team will publish the first volume of texts obtained through the mummy masks and cartonnage later this year. It will include the gospel fragment that the researchers believe dates back to the first century.
The team originally hoped the volume would be published in 2013 or 2014, but the date had to be moved back to 2015. Evans said he is uncertain why the book’s publication was delayed, but the team has made use of the extra time to conduct further studies into the first-century gospel. “The benefit of the delay is that when it comes out, there will be additional information about it and other related texts.”
The previous earliest-ever fragments are P52 and P104.
Evangelical Textual Criticism explains:
A lot has happened since then in the study of Greek palaeography and with the increase in readily available collections of digital images and refined classification one would assume that the experts are able to form an even more informed opinion now than they were in the 1930s. A 2012 article by Orsini and Clarysse provides exactly this re-evaluation. Their method is solid and responsible, both scholars have a tremendous track record, and in general I don’t find much to disagree with, even though in some of the finer distinctions Orsini and Clarysse make I cannot always follow them. Their evaluation of the date is not far off from what Roberts came up with in giving the range 125-175 for P52. So is P52 still the earliest fragment of the New Testament?
Possibly, but looking through the results presented by Orsini and Clarysse there is another candidate, P104, an interesting fragment of Matthew 21, published in 1997. This papyrus receives a date 100-200. Some particular scripts are easier to pin down than others and that is why P104 has a span of a century, whilst P52 only half a century. So we have P52 and P104 both dated by a range that has its median in the centre of the second century (it may be earlier, it may be later).
So what is the oldest manuscript? Well, there are two candidates, P52 of John 18, and P104 of Matthew 21; the former oldest manuscript has become part of a double act (two times 52 is 104).
P52 has John 18:31–33 and John 18:37–38 on it.
It will be interesting to see how scholars respond to this new fragment of Mark.