Would combined steam-and-gas turbo-electric propulsion persist?

If Japan made combined steam-and-gas turbo-electric propulsion work, would it become standard on JMSDF ships after 2000?

Later ships would probably use gas-turbine turbo-electric propulsion instead, chiefly because gas turbines offer much greater power.

Even if the combined steam-and-gas turbo-electric plant succeeded, the expected post-2000 development would favor gas-turbine turbo-electric propulsion. The stated reason is the greater power available from gas turbines. Success with the mixed plant would therefore not guarantee its continued use as the standard arrangement.