soon-to-be

adj

1. Planned or destined to have a specified position or quality in the near future.

   “While some Republicans, especially in the country’s reddest precincts, are delighted about the prospect of Mr. Trump running the party from exile at Mar-a-Lago, those who represent voters exhausted by the soon-to-be-former president are eager to move on.”

   “The Woodhead line also had many issues. Yes, it was electrified, but it was done so using a soon-to-be non-standard system.”