I don't see how it would make any sense whatsoever for Flutter to be "absorbed" by Android, it is entirely independent.
Also, I'd be curious to hear what major advantages Kotlin would have for Flutter. The Flutter team has commented heavily on Dart's useful properties for Flutter's goals (small comment here, there are well written full articles as well: flutter.dev/docs/resources/faq#why-did-flutter-choose-to-use-dart).
The internal investment in Flutter is well beyond the average tech project at Google. I don't expect it to be abandoned any time soon.
From the FAQ “the LICENSE file is 54.3 KB (compressed)” - that is pretty large amount of uncompressed text! I couldn’t find the full licence file (presumably containing all the licences of library dependencies).
Also, I'd be curious to hear what major advantages Kotlin would have for Flutter. The Flutter team has commented heavily on Dart's useful properties for Flutter's goals (small comment here, there are well written full articles as well: flutter.dev/docs/resources/faq#why-did-flutter-choose-to-use-dart).
The internal investment in Flutter is well beyond the average tech project at Google. I don't expect it to be abandoned any time soon.