There are currently 3 worlds in season 1 and none in seasons 2 or 3. Metropolis is in season 4. With your world that would make 4 worlds in season 1 all within approximately 55 days of each other. That means that 4 new worlds will have been created within the last 2 months, which actually fits in perfectly with my estimation before of 1 to 2 new worlds per month. At this rate, there will be 2 new worlds each month which means 24 per year which is a problem.