work in progress
US /wɜːrk ɪn ˈprɑː.ɡres/
UK /wɜːrk ɪn ˈprɑː.ɡres/

1.
travail en cours, en développement
something that is being developed or created and is not yet finished
:
•
The new software is still a work in progress.
Le nouveau logiciel est toujours un travail en cours.
•
My painting is a work in progress, but I'm happy with its direction.
Ma peinture est un travail en cours, mais je suis content de sa direction.