Board Thread:News and Announcements/@comment-4935956-20170123210824/@comment-5148107-20170123230748

I believe the last Jedi is referring to Kylo Ren, actually. I think this because he was technically a Jedi once, and he IS the last of Luke's Jedi. Also, Rey is not an official Jedi yet - just a Force-sensitive. As for Luke, eeehh... the only way I could say it is him is because the last section in Rey's biography on Wookieepedia is called "The last Jedi," but that is just the title of a section - before the movie title was even announced.

I don't really know.

It COULD imply "plural" Jedi, I kind of doubt it though.