understood. thank you for communicating in an understandable, straight-forward way. until this post, i did not understand your want of more buttons.
i don't know if there's a larger FC in the works. from the public information shared over the past few months, it's my understanding that many professional, touring guitarists said that a 3rd row or more on a foot controller was typically unused/unusable because of the risk of stepping on the first 2 rows accidentally. this, coming from big names in the industry, was probably a reason for designing the new FCs with only 2 rows.
yes, it would seem that some functions will require 2 button presses to "reveal" them. maybe there will be a larger controller in the future? i don't know. there are other options like the RJM MMGT that have more switches and the LCD screens. it's been mentioned when the Axe3 came out that the MMGT controllers would be made to work well with the Axe3, because many touring pros use that controller.
so we're back at needing to wait for development to happen. FAS will definitely take user suggestions into consideration - as many of them are the same things these touring pros need. lots of what was said makes sense, especially regarding controlling other units.
as matt mentioned, there are plans already for this functionality. the Axe3 came out around 3 months ago. that's a very short time. the controllers aren't out yet. let's see what happens when they are released, what it includes, and based on past products that were updated during their entire lifespan, let's consider that the FCs will be updated as well.