Thank you for your answer (though I'm not sure how I should interpret it...). In fact I already made a feature request but noticed afterwards that Adobe probably doesn't answer to those request so question was posted also to the forum.
Personally I have not used AE but our company is involved in LED video screen projects and some operators use AE to create content to those screens. Now we are involved in a project with a very wide (almost 50k pixels) screen and one more or less important feature is, at least in theory, to have a one picture/animation/movie which fills the whole screen. We have understand that with AE's present version it is impossible, but is there hope that this will change in the future? And if yes, is there any estimation of the timetable?
> but noticed afterwards that Adobe probably doesn't answer to those request
We don't respond to all of them, but we do read them, and we do use those requests to inform what we should be working on.