First parts of scene graph, more Project Bar copy/paste, new examples & more.
At some point you still need several types, which can interact with eachother. Even arduino has other smaller boards you can plug into it, but it's resticted by mainboard.
Here, inside engine, you can just set position etc into same place or read object instance variables into other object etc. If they make something big moddable, it could restrict the feature, while small things could be infact moddable by some extent.
I am not saying there should be 2 versions, 1 is always better, but I point out the case, that the only building block is getting constantly bigger, and we could need more base building blocks for different cases.
Arduino robots always are big towers like thous lego ones, we need small and slick robot/engine.