The UIs will likely be radically different to suit the more direct style of manipulation since the 'vocabularies' used in WIMP and DM are very different.
These demos are still WIMP ( Windows , Icons , Menus , Pointer ). Your implementation of "Pointer" has gone from indirect mouse control to directly using the finger but they are still
both pointers. You may feel an illusion of more direct manipulation but it is still just as directed either way.
The windows are still there. The icons are still there. The menus .... yes there.
The vocabulary is largely the same.
I know folks say but the gestures will cut down on menus/control panels.
That remains to be seen. Two factors which aren't going to change. One is that people have relatively small short term memory buffers. With a large set of commands only the most common will be quickly recalled otherwise you are off into long term recall which can be problematical for infrequent pulls of information. Menus/Panels work well because the commands are in front of you hopefully organized in a way to make that recall much more accurate/effective.
I don't buy into the the.... "we'll shortcut menus by doing a two handed, double twist with a half fakey" to invoke command 242 . Frankly the same thing can be done now with context function keys or command-shift-key22 .
Once get bound the initial small set of relative intuitive gestures they largely get as esoteric as the command-key equivs do.
The second factor is that the complexity inherent in the task being modeled by the software is still the same. It very likely was not the case that the menus and commands grew complex because the indirect pointer was causing the increase.
In very few cases it is. For example if folks are using to a very complex mechanical volume/input control panel. Where adjustments meant moving multiple dials/sliders/etc at once. With one pointer you have an increase in complexity. With two hands you have as many as you had in the mechanical equivalent. Those are winners, but unless the real world eqiv was not two handed won't see it.
However, also have cases where didn't really need those complicated mechanical boards. Sometimes their complexities are driven because couldn't create the right tool dynamically to be context specific.
Going to get into realm of doing what are taught as opposed to it really is a demonstrative improvement. It is just different. In tech demos need to look for "same woman different different dress". That is done all the time.
They'll be less 'control panelly' and more artistic given what I've seen, removing a layer of separation between you and your creation.
It "more artistic" you mean will see on screen more object equivalents to what use in the real world. Perhaps. Painting/drawing with a pen.
However, if it is artsy and there was no real world equiv ( photo color correcting) not so much. There it will be the use of a controller. Not really going be much different at the core.... just looks different.