You should get a new spike when fall arrives. Then, the temperature begins to fall, not to freeze, but the air is slighty cool. The phalaenopsis orchids require cool fall temperatures to put out new spike, and of course food with high phosphorus number, to support healthy and beatifull blooms. As I see the rest of the plant looks healthy, just keep feeding it with balanced fertilizer, then later, about at the begining of september, feed it with fertlizer that has high phosphorus number to help the plant produce the bloom spike more healthy. Good luck with your orchid! Crossing fingers!