While those who were over the age limit are cheering this, if you were under the age limit before you must realize the door has been opened for more competition, this is a way to make sure the USN gets the best possible applicants they can. I would not be surprised if the average GPA and ASTB of those selected climbs.
Something else is how well the older candidates will perform in flight school. The USAF seems to have done fine with slightly higher age limits than "must be commissioned by 27th birthday" that the Navy held pretty hard for a long time, but 32 for everybody instead of by exception is going to make ripples in the pipeline.
The older students in their mid/late-twenties are generally more cautious than the young ones (22, 23, and 24 year olds) and sometimes this makes them take longer to figure things out in primary pilot training. It's the same reason your car insurance drops when you get that age- the insurance companies are well aware that your brain learns to be more careful around that age (and they have the crash statistics to back it up).
Young people experiment with dumb stuff behind the wheel in their teens and early twenties; late twenty-somethings and thirty year olds not so much. Younger people are also dumb enough to think they could pull off landing on a boat in the ocean, fly really close to other aircraft, do loops, spins, flips and shit, and they think those things are really good ideas. Older people look at that in one of two ways: either they are smart enough to know better, or they pulled it off before so they believe they can get away with it again.
All that said, the training pipeline will be fine, it'll just have to adapt.
And if you're thirty years old, schlepping around an office job, and you want to be a naval aviator or a naval flight officer- then forget everything I just said and go for it.