I was a little surprised to see that the Mad Max: Beyond Thunderdome
Blu-ray is being released on June 4, 2013. I would have guessed that marketing would have held off until later this year.
FWIW the latest entry on Wikipedia:
Filming finally began in July 2012 in Namibia, more than eighteen months late. The filming wrapped on December 17, over-budget and with studio Warner Bros having sent out an executive to put things back on track. Miller announced that they would be returning to Namibia for pick-ups in early 2013 and the rest of the year would be taken up by CGI work and the conversion to 3D before a Christmas or New Year release.