All +1s are added. The Modern UI will be the new “face” of KNIME Analytics Platform and a working version for previewing already exists. You can find details on how to use it here: KNIME Modern UI Preview Guide
More on it in video format: KNIME 4.6: Modern UI - YouTube
We value feedback highly, and you can let us know what you think in this topic: KNIME Modern UI Preview
Kind regards,
Lukas