“In Press”: the manuscript is fully copyedited and out of the author’s hands. It is in the final stages of the production process.
“Forthcoming”: a completed manuscript has been accepted by a press or journal.
“Under contract to . . .”: a press and an author have signed a contract for a book in progress, but the final manuscript has not yet been submitted.
“Submitted” or “under consideration”: the book or article has been submitted to a press or journal, but there is as yet no contract or agreement to publish.
Okay, I know it isn’t English, but it offers a frame of reference.