The phrase "on the cards" is commonly used to refer to something that is likely or possible to happen in the future. However, there are several other synonyms that can be used instead of this phrase. Some commonly used alternatives include "in the air," "likely," "possible," "probable," "probable," "anticipated," "foreseeable," and "expected." These synonyms can be used depending on the context and the level of certainty involved in the situation. Whether you are writing a professional report or conversing with someone, using these synonyms can help you communicate effectively and express your thoughts more precisely.