in the pipeline

en proceso, en preparación

• We have several new features in the pipeline for Q3.
• There's a new book in the pipeline that fans are eagerly anticipating.
• The company has some exciting projects in the pipeline for next year.

This idiom is mainly used in business or technology contexts to indicate something is being developed or planned. It is common in both professional speech and writing. It's not very formal, but it's widely used in these settings.

A common mistake is trying to use 'in the tubery', which is not English. This literal translation from 'tubería' fails to convey the intended meaning of something being developed or planned.

• by no means
  de ninguna manera, en absoluto
• the jury is out on (something)
  todavía no hay acuerdo / está por verse
• set the stage for (something)
  preparar el terreno para
• in broad daylight
  a plena luz del día