Personally, I have absolutely no interest in C2 attempting to integrate 3D, as I think it will put too much strain on the engine. I'm hoping Ashley will agree.
I would be interested to see a straw poll of how many users are actually really interested in this, because it reminds of the calls for the Spritefont+ plugin to be integrated, even though barely 400 people downloaded the plugin.
It is sometimes difficult to gauge accurately if something is really of interest without some quantitative measure to look at.
Just my 2 cents.