It totally depends on some algorithm of Duo's, so I don't think anyone can tell. Whenever the new voice scores better by some parameters of theirs, everyone gets it.
I had the old voice for Italian while I was learning it intensively and I felt it took ages before I got the new one, even though it was obviously so much better than the old one.
I don't really understand what you're asking, but the way you would usually put this phrase as a question is "Är det så vanligtvis?". In Swedish, the verb comes first in questions and second in indicative clauses. That's why the word order in the question is similar to the sentence above.