Japanese has reached 3 Million learners!
The Japanese course for English speakers has reached 3 Million learners! Congratulations to the Japanese team!
Yes, for now the last two skills are Subculture and Olympics. Other courses on Duolingo have received updates over time. I don't think Japanese will be the exception. Those may or may not remain the last two skills, but 99.99% certain more content will be added somewhere to the tree over time. I would be shocked that wasn't the case. :)
I can confirm that a new Japanese tree may be on its way.
"I also want to have Japanese Tree ver. 2 with a lot more words, grammar points, and Kanji, with which hopefully we can introduce more advance sentences in a more natural way." -mhagiwara
Source: https://www.duolingo.com/comment/24519895 (you may have to scroll down a bit)