"Ere long" is a phrase that means "soon" or "in a short while". There are several synonyms that can be used in place of this phrase, such as "shortly", "before long", "in a moment", "in due time", "before too long", "in the near future", "in the coming days", "in the next little while", "before one knows it", and "in the blink of an eye". These words can be used interchangeably with "ere long" to express the idea of something happening soon or in a short period of time. By using these synonyms, you can vary your language and add variety and color to your writing or speech.