In almost every case, our titles have a specific release schedule. That goes for the subtitled and dubbed versions of a series.
Some of the factors that go into Anime Network Online scheduling are:
- availability of streaming rights (not just for a title, but also a particular language versions)
- the release strategy approved by the licensor
- coordination of release with other services, platforms and providers
- contracted periods of exclusitivity by another service, platform or provider
- production workflow
- materials delivery
- marketing plans
- maintaining the availability of newly released content each week
In short: There is a reason behind it all.
Hope that answers your question.