I'm a non-native speaker.
I know for a fact that come is occasionally used as a preposition in informal contexts. See Oxford dictionary.
I.e.
She would visit a new school come July
Now I wonder if there are any restrictions to that usage.
Could I, for example, write something like:
I was preparing pizza dough for the come evening
Best Answer
Yes, come is a preposition in such phrases as come July, come evening, come dinnertime...
You can hear thus usage in the Jimmy Buffett song "Come Monday" (YouTube video & lyrics).
In felicitous uses, come ________ can be paraphrased by
by the time _________ arrives, by the time it is _________, or when ________ gets here.
All the example sentences in Oxford can be paraphrased by using the expressions above.
It makes no sense in your sentence
just as no prepositional phrase would make sense there.
You could say the coming evening.
You could say something like