It would be very beneficial to have a toggle to change the texture filtering on a material face to "nearest neighbour" instead of linear.
(Especially for pixel art)
This would allow for much better looking and efficient pixel art and is already a thing under the hood in opengl.
This has been requested before but couldn't be done at the time because of database constraints for each object. But that would have already been changed with the support for PBR materials I believe.