ixpress,
You have several upgrade options from several manufacturers. Yair was kind enough to provide detail on the Leaf options that exist, so I will share some of the options available to upgrade to a current Hasselblad product:
#70380728 Upgrade 16MP MultiShot to H3DII-39 - $23,500.00
#70380755 Upgrade 16MP MultiShot to H3DII-39MS - $27,600.00
#70380754 Upgrade 16MP MultiShot to H3DII-50 - $34,995.00
#70380729 Upgrade 16MP MultiShot to CFII-39 - $17,400.00
#70380730 Upgrade 16MP MultiShot to CFII-39MS - $17,400.00
With promo on the H3DII-31, it is still cheaper to purchase it outright, than upgrade through Hasselblad.
There is other opportunity to trade-in your 4040 with a dealer, where we can apply the trade-in value in more creative ways, to include the other Hasselblad products. Most of Hasselblad's upgrade paths are designed to get you into the newest 31MP, 39MP, or 50MP systems.
Feel free to contact me if I can be of any assistance.
Regards,
Jordan E. Miller