It's always good to keep freshening things up.
But what does this mean to the general public, to which this notice is targeted? Will anything change?
Answering your concrete question, the pm role will not change, just the person behind it, as you know every person is different and has different styles, different ideas, different approaches etc.
Can't punctually say what's gonna change and I don't want people to think that things are going to dramatically change because that's simple not feasible. A new person in the pm role is a refreshment, a "change of batteries" if you want to put it that way.
I tend to focus on dev matters and this change will allow me to bring together both roles, pm and dev, making some process easier and less cumbersome for everyone involved.