"but this will need" is correct and usable in written English.
You can use this phrase in any situation when you are acknowledging that an action or process will take additional steps to complete. For example, "We have reached the halfway point of this project, but this will need a lot more work before we can consider it finished."
For sure this capacity of sequestrating carbon can be increased again but this will need time and the lost increments can never be caught up.
An early design concept for the new ship has been drawn up by naval architects, but this will need to be finessed.
The currency will have to be floated at some stage to achieve external balance, but this will need to go hand-in-hand with a credible commitment to policy tightening in order to anchor expectations.
The Russian regime needs to change, but this will need to come from within.
When making a vinaigrette, three parts oil to one part vinegar is a good starting point, but this will need to be adjusted based on how pungent your acid is, as well as your personal preferences.
Reductions in hospital costs could result from new operational policies that include clinical pathways and standardised use of resources, coupled with improved physician training and the introduction of new models of care to reduce LOS, but this will need confirmation in future research.
But even this will need the backing of Allianz and the raiders at Commerzbank's door.
These terms do look unusual, but ultimately this will need to be resolved at trial – unless of course it is settled.
The Tour director Christian Prudhomme has urged riders to stay clean for the good of the sport, but recognises this will need a "revolution".
"The board had planned to bring income in through the sale of players while considering the financial forecast for next season, but now this will need to happen much earlier in order to preserve the business".
