Instead of "bringing to a close," we can use antonyms like "continuing," "persevering," or "sustaining." To continue suggests a constant progression that does not necessarily stop or come to a halt. Persevering denotes the act of persistently pushing through obstacles without giving up. Sustaining refers to maintaining something rather than ending it. Other antonyms that can be used are "prolonging," "extending," "expanding," "developing," or "growing." These words connote the idea of growth and furthering, as well as the fruition of new possibilities that can arise when we do not explicitly end something.