This has probably been up to discussion before, but I could not find the exact idea.
It would be an amazing feature if FME could write directly to rvt, 3dm and other 3D formats. This would be helpful for many people who are in need of these formats, who don't want to use the other 3D formats that FME can write (e.g. skp, 3ds, dwg, dae etc).