Definitively this is something we would like to work in the future.
Although there are multiples problems to solve, not only the own Unreal implementation, but also what to do with the differences between platforms.
For example, spline support in Unreal is much more basic that 3DS Max. That limits us to migrate existing RC styles, which uses splines extensively.
Our resources and time is very limited, but if we should choose a new platform for our plugins, without doubts Unreal is one of the best candidates.