For the simple case of say, destructuring a tuple, that could work well:
a, b = ReturnsATuple(). But anything more general would just seem tacked onto the language.
But then again, tuples don't really fit well in C# either! Tuples are only useful if you don't have to declare their types, ever. Without full type inference, nothing is saved by using tuples over, say, an inline object.
I don't understand the significance of first class events, so I can't really comment on that. And as far as I know, delegates are first class now with the inclusion of lambdas.