What would you like to see in a Canon 6D Mark II?

Introduced in 2012, the EOS 6D became Canon’s affordable, entry-level full frame DSLR with the 5D III sitting right above it in feature set and price. With the release of the Canon 5D Mark IV, the gap between the 5D-series of cameras and the EOS 6D has widened significantly.
 
While we have no knowledge of an EOS 6D Mark II in the works, considering Canon’s development history it’s relatively safe to assume one is coming in the not-so-distant future. So we want to know – what specifications and features would you like to see in an EOS 6D Mark II?
 
Let us know in the post’s comments.