Four new types of question suggestions
Let L1 be the source language
Let L2 be the target language
Is it possible for Duolingo to have 4 new types of questions where you:
1) hear something in your L1 and then you have to type the translation in L2?
2) hear something in your L1 and then you have to speak out the translation of in L2?
3) Hear something in L2 and then you have to type the translation in L1?
4) hear something in your L2 and then you have to speak out the translation of in L1?
I know this sounds weird but some people here are learning on the reverse course for languages that don't have an English version yet. It would provide the listening comprehension and speaking practice in both L1 and L2 regardless of the direction of the language.
In the end, the only difference between using something like the Chinese > English course vs English > Chinese course would be the interface language.
Edit: To clarify, my suggestion is to create a two sided (L1 to L2, or L2 to L1) method of learning so that all bases are covered and reverse courses can be somewhat usable until the English versions come out.
That would indeed be quite an interesting and, I imagine, beneficial exercise! While just pronouncing things in the target language is still helpful, it is slightly less so when you hear it right before you have to say it, and the sentences are not that long. Putting two and two together would be a great way to solidify both the meanings and pronunciation. The thing is, though, I believe this exercise exists, but only for mobile, and potentially only for iOS, at that. Spreading it to all platforms would seem prudent, indeed. =)
Your number 3) actually is in place with some of the in-house courses, like Spanish. It gives you some exercises where you hear a sentence in Spanish and have to write down the English. As they experiment on the main courses with those exercises, if most users show that it helps them learn better, they'll expand it to other courses.
Is this a new feature? I have completed the Spanish tree and I don't recall ever having such a type of exercise (for any language for that matter).