Q: I’m also maintaining another extension which is not a complete WebExtension yet (b/c it contains a settings migration shim). Will AMO start suggestings “alternatives” for this until we upload a version without the shim?
@Caspy7: From a developers perspective I can tell you that, at least our users, were OK with us keeping the shim around however long we want, as long as we make sure that we push the update (without the shim) in time before 57 finds its way onto their devices. 