Even though it doesn't say edit, your first message appears to indicate that the edit field has come up.  Try pressing f2, and just typing the new filename, then press enter.  If the file is renamed, then the field comes up and you just don't hear it announced.

Never assume that because a screen[-reader doesn't indicate something, that it hasn't happened. 

Then, after this test, we'll see if you can read what is in the field as it changes before you finish renaming a file.

Gene