I'd like a version of the insulated wire, and bundled cabling that doesn't reduce it's power level over long distances (or provides a much higher limit than 255, so there is more of a difference between analog levels) so that long distance analog signals are much more feasible.
At the moment, I'm working on a Binary to Analog (and vice-versa) IC system, that theoretically allows 64 bits into 1 bundled cable, 4 bits per wire (4 bits per wire*16 wires = 64 bits), however I stopped at the proof of concept of 4 bits to analog/vice-versa because after about 10-15 blocks or so, the insulated cable changes its redstone analog representative, which is not very useful at all when attempting to use analog effectively.
Perhaps as a replacement, some sort of 'comparator' for a bundled cable would be useful, bringing it back up to the original signal (Not sure how it would work, maybe every 15 blocks?)

I would probably be able to easily brush it off, but it's only possible to get a 'full' analog redstone signal when there is only one wire between the input (IC accepting analog), and full output (redstone torch)

Thanks for looking at the idea, even if its not a good one, or not easily feasible. Keep up the great work on ProjectRed!

This has been asked for before. Unfortunately the way everything is set up it is not easy or even worth doing it, as it would require a lot of changes and it would result in decreased network performance.

What I have suggested before is if you really need longer signals, Wireless Redstone is the way to go.