When the developer will built the citra official because citra is released unofficially and it need very much support from others
Citra for Android is an unofficial port which was based on months old Citra core code. As we didn’t make it, we cannot provide support for it. However, we are working along with the dev behind the port to bring out an official app sometime in the future.
^ CitraBot Response.
No ETAs on this. But this going full steam now. I daresay we can expect it soon.