I am also reading the posts about the RT-AX86U-Pro, I did have one as potential replacement for the RT-AC68U.
One simple reason: they share a similar decent housing that perfectly fit at the location of my router.
The second reason was the "Pro" promises and outlook to the next Asuswrt firmware generation.
In other words: it looked like the ideal long term successor, in real it performed bad and I returned it.
For what ever reason ASUS seems have decided else and I do not dare yet to purchase one again with the risk it will be EOL soonish.
ASUS shall realize there are at least two sort of clients:
- Those who do not need the latest, greatest and fastest (read: bulky) but hope for something that can work for a reasonable time including firmware updates.
- Those who always need the latest, greatest and fastest.
I guess the RT-AC68U owner is of category 1 and knows the thing has a certain lifetime, but is now in doubt what a good replacement is.
Let's hope ASUS is not considering a new Asuswrt with subscription options like the competition (e.g. netgear) is doing.
[EDIT] The RT-AX59U would form-fit also be suitable, and the price is half of the RT-AX86U-Pro, I guess though the 59 is one that will have a short support life span.