I've been playing with the API for awhile now. It looks like expected release fields are often times null for games that haven't come out yet in favor of the original_release_date field being populated. I don't really understand how an original_release_date could be a future date.
In any case, I can't seem to find a way to, with a single query, return upcoming releases by month like the expected_release_month would. It seems like I have to executed the query for original_release_date for each day of the month. That could be up to 31 responses coming back to you. The API officially supports 200 per hour. Even just through testing I could quickly exhaust that. Also the API documentation says that too many requests per second can be denied.
Am I missing something? Is there a way to search for a original_release_date range maybe? Thanks!