around the corner

(be) around the corner (to be about to happen; imminent) — не за горами; вот-вот, очень скоро

Example:

also
be in the wind (to be likely to happen soon)

Example: From my recent conversations with Sara I get the feeling that change is in the wind.
(thefreedictionary.com)

[in the pipeline]
if something's in the pipeline, it hasn't arrived yet but its arrival is expected.

[in the offing]