The way I see it, either The Child storyline gets wrapped up this season, and the show continues with a new quest alongside the bigger Mandalorians storyline, or it somehow takes 4 seasons to find a resolution for The Child and this happens around the same time that Bo-Katan retakes Mandalore.
Revealing that Mando was raised in a cult was a really good move, explained everything. The episode did a great job of making him look naive and not as great as we might sometimes think (Bo & Co. are better than he is), though it felt a little incongruous with his portrayal in the first episode.
However, they’ve setup a really interesting future conflict. Someday, Bo-Katan will be in the same room as The Armourer, and both of them will be claiming to be the true and rightful keeper of The Way. When that time comes, which side will Mando choose?