To be honest, I wouldn't want Construct 3 to be 3D.
That means, if it were 3D. The simple drag & drop to layout would be gone. And we'll have instead the XYZ based drag&drop editing, which is kind of counter-intuitive for 2D games.
Unless, 2 & 3 Dimensional Editors were to be separated.
Although, that is just the start of the problem. Realistically, maintenance would be way slower given the Construct Team is just a small team and a 3D Editor requires more to maintain and innovate.
It's easy to think that "Wow. It's easy to use Construct 3. Imagine if it were 3D too, it would be great. " But people sometimes don't understand that the reason it is easy to use is because it is mainly made to be easy-2D in the first place.
I wasn't talking about construct 3 in specific, but thanks for sharing