In the shower, I sing the phrase “fungible commodities” far too often.
Words are tools in an information war and facts are fungible.
So while expectations are optimistic, any dates, at least for the time being, should be fungible and are not set in stone.
"capable of being used in place of another," 1818, a word in law originally, from Medieval Latin fungibilis, from Latin fungi "perform," as in fungi vice "to take the place" (see function). Earlier as a noun (1765).