Yes...and no.Folks, @marni1971 has been saying this for years and it's in the rumor tracker.
Though, Disney did stir the pot with putting Imagination Pavilion and Mexico pavilion on the model which seemed to be a hint of what's going to get significant announcements... which they didn't. The model was a lie!
First yes @marni1971 stated and repeated and has been quite forthcoming on this.
However, he will probably also be the first one to tell you, that don't mean it will get built. Plans change, priorities change and in a few years quite possibly management will change.
I for one have no question Martin knows what he knows. I just don't think Disney will build some of this. Just my doubts coming forward I guess.