Will all depend on how the fuel burn stacks up, but I have serious doubts.
B787 - $1,000,000 month lease / 278 seats
A330 - $350,000 - $400,000 month lease / 374 seats
B763 - $300,000 month lease / 315 seats
Maintenance reserves will also obviously be a factor, but then can you 'maintain' plastic?