No plan for it.
Please search the issue tracker for previous discussions.
I could find none.
Would it be ok for you to receive external help for putting this app on fdroid.
Nope, we don't have any plan for it.
Old discussions:
https://github.com/shadowsocks/shadowsocks-android/issues?utf8=%E2%9C%93&q=is%3Aissue+is%3Aclosed+F-Droid
Ok if you don't want to receive help from outside. It's your decision.
Cant do that when using libs to spy and track/gather phone data :P