Solid shade or wireframe shaded options for imported objects.
TBH bounding boxes just don't cut it when you are importing an object and you need to see orientation and positioning in realtime, would also be handy if you could see the object intersecting the landscape.
I can't say for certain that it will be in the next update, but I'm pretty sure someone showed a preview created with a beta version a while back that had this feature. So...patience!
That would be usefull
Let yourself be surprised...