I agree with Mr Sjdorst and Mrs Eneroth3. In fact it's a risk, Trimble may be tempted to make it harder for modeling to further optimize renderings and that would take the title of software simpler and easier to use that is how we know it.
But I think it would be possible if they found a way to let the simplicity of 3D modeling (which is the strength of SketchUP) and the complexity of rendering, creating illumination and animations on two different wings. But it's like "Mr. Sjdorst" said this is too risky, I really agree there is such a risk.
But what about the other suggestions:
A) Optimize the textures or leave the textures simple, but make available a store with textures created by Trimble for PRO users or include the BETAS as well;
B) Optimize the basic tools, for example: extrusion, ball creation, proxy creator and Mirror.
I think these would be good options for future upgrades and would not take the simplicity out of SketchUP. Personal excuses if I am being inconsistent do not want to be boring just want to share some ideas.
In general, the more export / import options SketchUP makes available the better, so what you can not do in SketchUP is done in other software, more complex as 3DS MAX, and I agree with another statement made by Mr. Sjdorst - Trimble should focus on making SketchUP modeling as simple as possible in future versions.
But if (only a big if) they find a way to simplify 3D modeling, but leave the complexity of renders, animations and illuminations separate. So why not do ?. It would be a risky step, but if they could get a big step for SketchUP.