WordNet sense 1 (the temporal property of becoming nearer in time):

approach, approaching

WordNet sense 2 (of the relatively near future):

forthcoming, upcoming

WordNet sense 3 (yet to be or coming):

future

WordNet sense 4 (yet to come):

future day

WordNet sense 5 (the moment of most intense pleasure in sexual intercourse):

climax, sexual climax

WordNet sense 6 (arrival that has been awaited (especially of something momentous)):

advent