Thankfully, he’ll have a lot to do in The Last Jedi, as he’ll be training Rey in the ways of the Force on Ahch-To.
Excluding that Force vision Rey saw when she touched his lightsaber, Luke Skywalker didn’t appear in The Force Awakens until the very end, and even then he didn’t utter a word.
However, in the first Last Jedi trailer, Luke said that it was time for the Jedi to end.
It’s unclear what exactly he meant by that, but after being betrayed by his nephew, watching his Padawans be slaughtered and spending years in solitude, we’ll be seeing a much different Luke from the one we left off with in Return of the Jedi.