Mark Gurman at 9to5Mac doubts that Apple will be able to launch the rest of their 2013 lineup — including “secret Mac-related hardware that nobody knows about”, which is such a tease — in a single event.
I disagree. Apple is getting really efficient with their press events; the iPhone 5C/S announcement took almost exactly one hour, excluding the Elvis Costello performance at the end. The smaller updates on Gurman’s list (iPad Mini spec bump, Haswell MacBook Pros, and Mavericks details) could take as little as five minutes apiece. Others, like the retina iPad Mini and updated iWork suite, might take ten-to-fifteen each. I don’t anticipate a Final Cut Pro update to make an appearance, unless it’s bundled with the Mac Pro bit.