Well Teyon's post hints at a content update that may be in the works, so maybe that will correct the lashes issue.

I don't see how the face room could do anything about the lashes since they are separate geometry from the head. 

You could try morphing the lashes in a sculpting program like blender or zbrush. I know it won't be difficult in zbrush but I don't use blender's sculpting tools so I can't comment on how easy or not it would be there.

For now it seems that's pretty much the best option though.

 

~Shane