Nice to see you can just un-check what you want on your menu, too. Lots of little things. Also ...
Beta-test pixel movement and smooth walking animation.
EDIT: Here is a Q&A with a beta-tester (Archeia)
Q : What is the default movement of the on-screen character?
A: It's a 48x48 grid. But since the scripts/plugins are now super flexible, you
should be able to adjust it.
Q: Can you transfer existing games made in RPG Maker VX/VXA to RPG Maker MV?
A: Not possible.
Q: Does the RPG Maker MV game executable run as a 64-bit or 32-bit program?
A: 32-bit.
Q: Do you need to develop and/or build your game on a Mac in order to deploy to the Mac or iOS platforms? Or can you do it from a Windows version as well?
A: Nope. You can do it in both OS.
Q: The Luna-Engine is listed as one of the scripts on the product page picture. Does this mean that RPG Maker MV will be RGSS-compatible with the past makers?
A: Nope. This is a test for a custom plugin. In short, remaking Luna Engine to MV.
Q: Can you go higher than the stated 816x624 resolution?
A: Higher Definition and Resolution is supported through plug-ins. A resolution of 1920x1080 has been tested.