Since it’s now confirmed (in the 2019-02-08 RTV) the UEES is not capable of time travelling, but was just renamed after the discovery of the Stanton system, what was the original name?
As a suggestion, the Yorktown, as referenced by Jared, was renamed the Enterprise-A to continue the legacy of the Enterprise with the same captain and crew, whereas the Stanton had no such legacy. Therefore, could it be possible the earlier name was something politically inconvenient, such as the name of a Messer, or some other person that had fallen out of grace? Any other name, whether the name itself has any significance or is something generic, would have built up a legacy during the three or so decades before the renaming which would mean there’d be little reason for a name change. Taking a page from the ancient romans, however, if the ship and crew thoroughly disgraced themselves, the crew could have been replaced and the name changed so as to erase the now dishonourable legacy.