Australia's Prime Minister Tony Abbott, who is in China, will give a press conference soon and will address the latest MH370 developments, Mr Thomas indicated.
Mr Thomas is the editor-in-chief of the website airlineratings.com and executive editor of AirlineReview.com.
According to Mr Thomas, the Ocean Shield and the HMS Echo have both left the search area "at speed" and sources had told him there was a possibility they had "triangulated" and located the black box.
He stressed these were unconfirmed reports.