I first have to ask why in the time since FCC RM-11708 was so universally opposed, that a better solution has not been put forward by the committee. In contrast, ARRL is trying to push through this hasty and ill-planned initiative that will destroy weak signal work on 40 meters forever, and have negative impact on most other HF bands. I am going to "break this down real simple." This is not a new idea either. Several other amateur bands have already been using this type of solution.
But it is clear that the existing ARRL HF band planning committee does not know anything about propagation in the HF spectrum (evidenced by their statement of no American DX work on 40), does not have the patience to properly coordinate competing weak signal modes on 40 meters (it wasn't worth their time to try), and has no talent for negotiating positive change (as evidenced by ramming something through instead of using public input for solutions).
It is very clear by now that someone needs to "think outside the box". Let's not rush this half-baked thing through without trying something else which will actually work. Here is a method to solve this problem.
Wide band and automatically controlled digital modes like Winlink and Pactor 3 and 4 are fundamentally incompatible with other digital modes. They also do not coexist well with RTTY, CW, or SSB signals due to the "channel busy" of the ACDS stations being either unable to cope with other modes or deliberately turned off. They need to be located away from weak signal work completely. Just because a ACDS or Pactor signal is nominally "digital' in nature, does not mean it has to be located next to other digital signals.
Weak signal work generally occurs on the low end of any ham band. This is true throughout the VHF spectrum and particularly on 6 meters and 2 meters, where there is a lot of CW and SSB or other weak signal work. In general, HF bands have a 25 KHz set aside for CW. In the USA, that is typically reserved for Extra Class Licensees who traditionally in the past have passed a high speed code speed test.
On 30 meters, ARRL has already proposed putting the ACDS (automatically controlled digital station) and wide band Pactor 4 and Winlink activity at the TOP of the band.
On 10 meters, a wide band mode FM with automatically controlled stations (repeaters) are located at the TOP of the band. The AM operating area is 29.0 MHz to 29.2 MHz. Both are wide band modes and cause no disruption to weak signal modes such as CW, RTTY, or SSB. They coexist on the same band without conflict.
On 40 meters, a wide band mode (AM) is already operating in the AM window at the TOP end of the band. Some alignment between SSB weak signal long haul work is already possible between certain IARU regions. Other weak signal SSB work is done in split frequency mode between other IARU regions. The ARRL HF band planning committee has apparently not heard that some radios come equipped with a "VFO B."
On 15 and 20 meters, AM seems to be gradually migrating to the TOP end of the band.
On 160 meters, we have gotten along just fine, thank you WITHOUT ANY BAND PLAN AT ALL! On CW contest weekends, the activity moves up often higher than 1.9 MHz. The next weekend, things are back to normal. If ACDS and wide band Pactor 4 move into this band, world wide communication will become a thing of the past. The ignorance of the existing band planning committee would likely never have heard of the book: "Low Band DXing" by ON4UF.
HERE IS MY PROPOSAL: