Experts expect the documents will reveal new info on a trip Lee Harvey Oswald took to Mexico, where he met with Cuban and Russian spies.

While the news might excite people who believe that the assassination was an elaborate government conspiracy, experts on the November 1963 assassination say we probably won’t get any explosive new information that would rewrite the history books. According to Philip Shenon and Larry J. Sabato—two historians who have researched the assassination extensively—the documents could shed light on a trip Lee Harvey Oswald took to Mexico weeks before killing JFK, where he met with Cuban and Russian spies. In a piece for Politico, Shenon and Sabato said that “many” of the previously unseen files center on the trip, during which Oswald “came under intense surveillance” by the FBI and purportedly “spoke openly” about wanting to kill JFK.