1. You can't see if any modulation or effects are enabled, or it's in classic mode, unless you open extension panel and open mod or effects page. Would be good to have small indication of this at all times in top application window bar, like v2.
Yes. An indication which effects are enabled is defintely needed.
5. Parameter values are now shown on the bottom window bar. When you resize the window larger than your screen you cannot see the value. would be nice to have them hover near the mouse so it's always visible, like v2.
A bit odd indeed. But unlike v2 the information is now useful for all knobs and switches. I can now tell instantley if eg OSC mod is on or off - thanx a lot. The only thing missing is the note name for the filter frequency

And there is a slight inconsistency between the amount of contour and the sustain level. The UI shows values between 0 and 10, which is only translated into a perecent value for the contour. IHMO it should either be percent for the sustain as well or dBs.
The only thing I really don't like about the new GUI is the low contrast of the status bar ("play mode", etc).
All in all a nice brush up of the old design.
Masi