As per the little brother of the ER7206, the ER605 and its recent success with being included as limited support, I would be keen to see the ER7206 getting similar treatment.
I have one of each of the 7206v2 and 605v2. I can see some good work has already happened on the 7206, but seems to have stalled? Looking at the 605 progress, it seems that much of the problem was related to a strange layout of MTD partitions used by the stock firmware. @chill1Penguin assisted with some code to reformat into a layout that was friendlier, then load openwrt-initramfs-compact.bin, then allow a sysupgrade 23.05.3. This works well, though reverting to stock requires restore from a full MTD backup. Is it possible some of these techniques could be used to provide support for this model too?