Rian Johnson and (eventually) Mark Hamill showed up at SXSW for The Director and the Jedi, and you can watch their Q&A, or check out The Hollywood Reporter’s article, which highlights my favorite Rian Johnson quote re: Luke. (The post-screening Q&A is this way.)
If you’re waiting for the Blu-ray, here’s a few more clips: Luke’s struggle, above, plus Mark Hamill and Frank Oz reunite, Paige Tico and the bomber attack and the gorilla walkers. Meanwhile, also check out Mike Ryan’s observations on Johnson’s commentary.
StarWars.com has an interview with puppeteer Brian Herring, one of the BB-8 operators, who also worked with the porgs in The Last Jedi.