Le Dernier Jedi ?
Les Derniers Jedi ?
La Dernière Jedi ?
The Last Thursday ?Spoiler alert when the translations come. But I believe there is no ambiguity, it refers to Luke and that’s all.
As does The Force Awaken crawl…
"Luke Skywalker has vanished. In his absence, the sinister FIRST ORDER has risen from the ashes of the Empire and will not rest until Skywalker,
the last Jedi,
has been destroyed."
Credit goes to google/twitter, not me…