There will be too little time between a “first” trailer and the planned movie, it has become common in the last ten years with three months between the first trailer and the movie, according to Russian reports the trailer should have come out in May, but it has not happened. There are only weeks until the summer holidays for children, so they must have the trailer NOW to have high expectations throughout the summer. This is not common. Most movies usually have two trailers, the first for a brief impression, the second for showing the action in the movie. Looks like it could just be a trailer.