If you are still a good 15 months away, one more month will most likely not make/break the enrollment issue. The really well-known (read: not always the best for your child) places may have lists that will extend far beyond that time frame anyway.
That being said- be aware of tricks that get your child enrolled for the time frame you need them to be. We enrolled DD over the summer (May - August) for two days/week because it gave her priority for fall (Aug - Dec) when we *really* needed care.
Of course that meant extra cost, but well worth it!
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The ultimate measure of a man is not where he stands in moments of comfort but where he stands at times of challenge and controversy - MLKJ