in reserve (?.)
- about to be
- already in sight
- approaching
- aside
- at hand
- back
- brewing
- by
- close
- close at hand
- coming
- forthcoming
- future
- gathering
- going to happen
- immediate
- imminent
- impendent
- impending
- in anticipation
- in danger imminent
- in prospect
- in readiness
- in store
- in the cards
- in the offing
- in the wind
- in view
- instant
- looming
- lowering
- lurking
- menacing
- near
- near at hand
- nearing
- on the horizon
- overhanging
- preparing
- that will be
- threatening
- to come
- upcoming
- waiting