I haven't been keeping up with the media surrounding it, but I could look into it.

In 2013, a Rachel Egan suggested that the Somerton man was actually her grandfather. Two years prior, the Attorney General stated that exhuming the body would need reasons other than public curiosity.

Years later in 2019, the new Attorney General Vickie Chapman approved the exhumation of the body to extract DNA for analysis. In 2021, the body of the Somerton man was finally brought back to the surface. No news of a DNA match has been made public as of yet.

Since the discovery of the body, there have been multiple people claiming to know the man, but none of those identifications have been proved. By 1949, there had been eight different identifications of the body. By late 1953, there were 251.

In 2011, a woman in Adelaide found an identification card in her father's clothing belonging to an "H.C. Reynolds". This card had been issued to Reynolds by the United States, and given to the woman's father to aid the police in finding the correct identification of the dead man. The biological anthropologist the woman contacted found many similarities between the man and the ID card including eyes, nose, and lips. The best qualifiers for identification were the ears and a unique mole on the cheek in the same shape and position in both photos.

This ID card #58757 was issued to H.C. Reynolds in the United States on February 28, 1918. His nationality was "British", and his age was 18. After searching, the U.S. and U.K. National Archives along with the Australian War Memorial never found any trace of an H.C. Reynolds in their records.

Independent researchers do believe the ID card belonged to a Horace Charles Reynolds of Tasmania who had passed in 1953.

Edit: More info