The connman/iwd changes are already merged into LE11 branch. NB: I'm not sure what advantage you're expecting with aarch64, but it's not going to noticeably improve anything and you will have to reinstall or remove binary add-ons) as they are not aarch64 compatible; and there will be no replacement binary add-ons in the repo as there are no ARM aarch64 releases for LE11 so the add-ons weren't built/don't exist.
The kernel patchset is ridiculously large but will reduce if I ever find the enthusiasm to rebase it on a newer kernel. I have no plans to do that in the near-term future though.