There's likely a clever way to do that despite Wing's explanation, but it'll be a whole separate project.
Wing will pave the way and come up with a good abstraction or two, then become obsolete once general purpose languages with better ecosystems can do the same.
Of course not. There are some powerful options like CDK and others.
An additional goal seems to be to create a simplified language that doesn't have the surface area and dependency issues another language might have. While I understand the reasoning, I've been in tech long enough to know that usually doesn't work, and just creates another real world example of XKCD 927 (https://xkcd.com/927/)
Wing will pave the way and come up with a good abstraction or two, then become obsolete once general purpose languages with better ecosystems can do the same.