Kenneth G. Wilson (1923). The Columbia Guide to Standard American English. 1993.
presently (adv.)
means either shortly, soon or now, at present. Both meanings are Standard, although there has been much objection until fairly recently to the at present meaning, even though it has been in steady use since the early Renaissance. The tense of the verb and other contextual evidence usually make clear which sense is in use in a given sentence. Ill be seeing you presently clearly means Ill be seeing you shortly or soon. Hes presently at work on a new novel means that he is working at present and would mean the same thing with now or nothing at all instead. See also FORMERLY.