I looked at the table more closely after Glider's comments.
Yes, the mission can be interrupted while in flight by use of sticks and to change the battery. DataPilot does have camera options to take photos by time and distance intervals.
I wonder if options for curved flight and other functions were omitted for simpicity on the ST16S?
Having those options makes taking shots much simpler. Who wants a MR that is jerky and lacks the ability to make smooth transitions of direction? The 3DR Solo still after all this time has the best camera shot system. It's the FC that allows this. The latest 3rd party app Solex for Android is just fantastic. The H480 has some nice features as well, but what about the 520?
My comment on the 'continue mission' was if you lost connection with the craft or get a low battery warning, both are failsafe conditions that in Arducopter can be overridden in the parameters. For example, since it is an autonomous flight, if the craft momentarily loses connection during the mission, I may not want it to abort and RTL or Land or hover. There are good reasons for this. I don't want Yuneec being my nanny. That's what *** does.
As it stands, someone needs to include a detailed manual on what exactly the 520 can and can't do. I watched a recent video with a Yuneec rep, but honestly it was not all that inclusive. It was basically "oh everything is great and wonderful; the H520 is so much better than the H480, you're gonna love it".
I've already checked off what I like about the 520. There are too many unknowns to make a decision right now because nobody seems too sure what it can do. I can wait until about the end of February for Yuneec to get this all ironed out. After that, well...