The aforementioned “batch of pages” will be released in what I'll call “seasons”.
Coincidentally these “seasons” will match up with real world seasons (the 4 big ones at least).
A schedule will usually be made for 2 seasons, which will span over a single year. (ie. There will always be at least a 1 season break between releases.)
As of now the two seasons covered will be summer and winter.
How season releases are handled will depend on what there is to release. At max, I don’t see a season having more than 3 releases.