Do you mean the Axe Fx IV will still have the same screen size???????
Forgive me if I'm wrong JH-2 (love the name btw, as I'm a huge Metallica fan myself), but it seems like maybe English is likely not your native language from reading your messages.
Cliff's point that you quoted in your post is more commenting that making complaints in a forum is unlikely to change any designs already currently in the works for the next version of the Axe III or any potential Axe IV designs in the works. Cliff and his crew has been in the industry (multiple types of software development, possibly hardware as well) and they're well aware of what technology is out there, but also from their professional experience, what the professional artists are looking for.
From creeping on these forums, Cliff has given me the strong impression he at least listens to almost all suggestions, but due to any number of reasons he's likely too busy to elaborate on, or we're on a need to know basis, sometimes he implements suggestions, and other times he doesn't.
There was a thread a long time back asking for the ability to use 3 amp models in a preset at once. While
I would still like that, that post has been around a very long time, Cliff's seen it and commented on it, and not implemented it. He's far more knowledgeable in what's possible and/or necessary than the vast majority of us.
It might be frustrating, and at times I don't always agree with some decisions, but that is just a part of life. You'll have to decide whether it's worth it for you to wait and see what comes next or if you'd like to look for a tool that's better suited for your needs right now.