Hi Frank,
The series, to my understanding, ends there [part 22]. Yes, the instructor suggest the next tutorial to get the After Effects workflow going.
As one of the leading instructors in After Effects, Trish and Chris Meyer, I would suggest the short series of Chris here: [starting with]
http://www.cineversity.com/vidplaytut/cinema_4d_after_effects_integration_-_overview
If there is any question about C4D>Ae, please let me know in the QA forum.
You can also use the Tutorial Filter function to select other After Effects tutorials. They are mostly part of a complete workflow.
My Jet-Making-Of series discusses for example a complete workflow based on my multi awarded short movie JET (Junior ExtraTerrestrial). With a few exceptions, I use mostly Ae for the comp work.
All the best