Olympus' followup to its excellent OM-D E-M10 Mark II, a mirrorless model for newbies who want a viewfinder, is more of a Mark II-plus than a Mark III. There are a few tweaks to the design and a new effects filter, but the biggest change is the updated interface for beginners -- intended to be easier to use than the old supposedly easier-to-use interface.
The update to the Mark II has some design tweaks, but the biggest change is a move away from its odd "easy" operating mode.