Planned STEM courses to be added in the future

I have to say, I have really enjoyed studying math and other subjects through this platform and I have learned both faster and with a better quality compared to anything else I have tried so far. I am curious though, does the KhanAcademy team plan to add higher level courses in the future? I am given to understand that subjects like Math, Physics, Chemistry, Biology, etc cover roughly up to freshman and sophomore levels? Would it be possible to eventually add the entire graduate curriculum for each of them?

Thanks in advance.

I hope this will be considered.