1) Await 2) Brew 3) Loom 1) Be about to happen 2) Be imminent 3) Be near at hand 4) Be to come 5) Brew 6) Get near at hand 7) Hang fire 8) Hang in the balance 9) Hover menacingly 10) Hover threateningly 11) Loom 12) Loom in the future 13) Loom on the horizon 14) Menace 15) Threaten 16) Threaten to happen 17) Threaten to occur 
• (v. i.) To hang over; to be suspended above; to threaten frome near at hand; to menace; to be imminent. See Imminent. • (v. t.) To pay.
Im·pend' intransitive verb [ imperfect & past participle Impended ; present participle & verbal noun Impending .] [ Latin impendēre ; prefix im- in + pendēre to hang. See Pendant .] To hang ove...Im·pend' transitive verb [ Latin impendĕre ; prefix im- in + pendĕre to weigh out, pay.] To pay. [ Obsolete] Fabyan. 
[v] - be imminent or about to happen
verb be imminent or about to happen; `Changes are impending`
to be imminent; be about to happen. · to threaten or menace: He felt that danger impended. · to hang or be suspended; overhang (usually fol. by over).
be imminent or about to happen