The 787 is the Middle Spot aircraft it is for long skinny routes. The 787 was created just to replace 757, not the 777. The 737 MAX was not made to replace the 757. It's purpose is to refresh the 737 series. The 797 will be a high capacity short range aircraft for routes such as New York to Los Angeles, and New York to Chicago. There is no need for electric aircraft at this point, we still have enough gas at this point to have no demand for an electric aircraft. Plus switching to electric would be a huge fundamental change in aviation no one was asking for. The a350 and the 787 will be sufficient for the next 20-50 years.