An AND or OR gate that takes all the colors of the input bundled cable and outputs a single redstone signal for the AND or OR of those colors. This would be extremely useful for things like matching a hardcoded value. I wouldn't need to place all the colored wires a second time.

An analog to digital converter and digital to analog converter. One takes an analog signal as an input and outputs the digital representation on the bundled cable, the other does the opposite.

A digital output block that lets you easily set a color combination of wires to be high using 2 hex digits which are displayed on the block.

The addition of these gates and IO blocks will allow compacting things significantly. Currently my builds with more red are mostly in large flat sections of color coded wire to do things like select the upper or lower byte on a cable.

Sorry if this isn't the best place for suggestions, I just really like the mod and am building some cool stuff that could be improved with a few blocks.

Resolved in future release (1.21.3 or later), bitwise gates can now connect to red alloy wires (in which case they emit/receive signal on all channels)