One point I want to raise is that of how fast the code is to type. If you can come up with an elegant syntax that doesn't require characters that need key-combinations ("Ctrl" + "[" for an open-brace, "Shift" + "9" for open-bracket, etc) then that would be awesome.

I agree that typing code isn't as fast as typing English (because of all the non-standard characters we have to use []{}()/\~ and so on) but you could help to minimise this gap.