coming vs on the horizon

coming

adj
  • Approaching; of the future, especially the near future; the next. 

  • Newly in fashion; advancing into maturity or achievement. 

noun
  • The act of arriving; an arrival. 

on the horizon

prep
  • Imminent. 

How often have the words coming and on the horizon occurred in a corpus of books? (source: Google Ngram Viewer )