The wait is nearly over, the Carnival Phantasm RAW has been released (at least a public raw has been)
And better news, it is multiple episodes.
Volume 1 has 4 episodes inside of it. The length is of each episode is unknown because I have to download it first, and judging by how fast the amount of peers is rising, it might take a while.
There will be a total of 3 volumes. I'd assume each volume will have 4 episodes in each, making up to 12 episodes, which makes sense because they were advertising a 'season'. Each episode is 14 minutes long.