Loading bar for imports

I frequently have really big imports of .fbx and .stl files that usually take 30 minutes or more. I used to just think Blender was freezing until I imported them into UE4 which actually has a loading bar and I realized that it was just going to take a really long time.

I haven't messed with the Blender source at all, but it seems like something that would be simple to implement, and really informative / reassuring to know that Blender is in fact doing something and hasn't crashed.