Dan Field mentioned on
https://github.com/flutter/flutter/issues/18494 that he would try to look. Beyond that we have no schedule to share.
Flutter is growing so fast, mostly my teams (and the wider community) are just trying to keep up with the massive, massive user growth and the resulting highest rated bugs:
as well as of course the various requests which come in from big customers inside Google or from the public. :)
This feels like something which relates both to the upcoming 64-bit transition for the Play Store:
as well as our in-progress "make it easier to add Flutter to your existing application" efforts, as seen on our public roadmap:
I would expect to see progress on these bugs in the coming months, but again I have not guarantees.
Flutter is 100% open source and patches are always welcome! :D
Sorry I don't have more specifics.