From the perspective of a camera manufacturer, ME is only a facelifted minus viewfinder frame lever M9 that continues till the Kodak sensor runs dry. Clearly ME is classified as a 'cashcow' for Leica. Leica will milk it as much as possible before EOL (end of life) for M9/ME.
Leica M (type 240) can truly be classified as Leica's 'star' that is expected to yield Leica an expansion in market growth (possibily into DSLR user mkt) and profit growth.
Hence with this business logic, Leica will not likely improve the functions of the ME from M9. If otherwise, Leica will only canebalise the Type 240 mkt share.