Samsung have been rumoured to be working on a new version of TouchWiz for some time now. Samsung’s UI hasn’t changed a great deal in the last few years and even the current version, running on the S4 can feel clunky at times.
Thanks to @evleaks, the images above may be a first look at what Samsung have in the works. There is a much more polished and modern feel to the graphics compared with the current version and the first two images also seem to show a card based layout for widgets on the lock screen and on a home screen.
It’s obviously only a rumour for now but if this is the real deal, I’m sure we’ll be seeing many more leaks of it in the lead up to the S5 launch.