in the post
en route
on the way
impendingly
to come
fisherman's soup
around the corner
in train
in the wind
forthcomingness
impendence
impendency
imminence
on the boil
imminentness
imminency
faster than a minnow can swim a dipper
on the horizon
anon
accelerated
at the door of
in the offing
pull away
oncoming
pending
early doors
forthcome
at hand
come in
break
get in
get it on
soonly
be along
come
early
sooner rather than later
any minute now
in no time
quickly
cooking
forthcoming
pass on
sharpish
last-minute
on the brink of
on the point of
proximate
go on
imminently