This is a fun thought experiment: projecting historical linguistic methods onto early-stage linguistic changes currently happening in American English, especially this vowel shift, to predict what the language might look like in another thousand years. It’s got a heavy dose of speculation, of course, but it’s very thorough and well-thought-out as far as speculation goes. 

For comparison, the English spoken at the turn of the last millennium looked like this: 1000 AD: Wé cildra biddaþ þé, éalá láréow, þæt þú tǽce ús sprecan rihte, forþám ungelǽrede wé sindon, and gewæmmodlíce we sprecaþ… 2000 AD: We children beg you, teacher, that you should teach us to speak correctly, because we are ignorant and we speak corruptly…

The process of getting to the prediction is really interesting and highly worth the read -- it gets a bit dense among the details in parts, but it’s still worth skipping around. Here’s the conclusion (oddly, one of the only parts that isn’t also in IPA):