Rolls-Royce is aiming to put the latest variant of its Trent 1000, designated the 1000-TEN, into service in 2016 - a powerplant which it intends to offer for the entire Boeing 787 family including the proposed -10.
The manufacturer is intending the engine to offer up to a 3% improvement in specific fuel consumption compared with the current Trent 1000 baseline.
It will be certified to 76,000lb (338kN) thrust but will be able, if required, to provide 78,000lb.
The engine will typically deliver 70,000lb for the 787-8 and 74,000lb for the -9.
Rolls-Royce vice-president for strategic marketing Robert Nuttall says the -TEN will take advantage of technologies from the Trent XWB and Advance 3 programmes.
It will include a rising-line intermediate compressor and blisks from the XWB and high-pressure turbine and air system features from Advance 3.
"We believe the XWB compressor is currently the most efficient in the world," says Nuttall.
The manufacturer insists the updated engine will provide the lowest "real life" fuel-burn for each member of the 787 family.
Rolls-Royce's Package-A version of the Trent 1000 has given way to the Package-B this year, and the Package-C - offering a 1% improvement on the -B standard - will succeed it in 2014.
The 1000-TEN will provide a further 2% improvement, and become available in the first half of 2016 on the 787-8 and -9.
Trent 1000 powerplants entered service with Japanese carrier ANA in 2011 and the lead engine has logged 1,700h and 1,000 cycles.
Rolls-Royce says the 'TEN' designation derives from 'thrust, efficiency and new technology'.