in phrase in the offing, 1779, from nautical term offing "the more distant part of the sea as seen from the shore" (1620s), from off (q.v.) + noun suffix -ing (1). Originally the phrase meant "in the distant future;" modern sense of "impending" developed 1914.
In the near or immediate future; soon to come. For example, Jan was delighted that exams were finished and graduation was in the offing. This expression originally meant “in the part of the ocean visible between shore and horizon”; its figurative use dates from the late 1700s. Also see in the wind