juiceme, check out OMEMO, it's based on libsignal but made to work with XMPP, and it also works in group chats (well, MUCs, but the new kind of 'real' group chats, 'MIX', is on the horizon). Works very well with the Android application Conversations and the desktop application Gajim. Waiting for more clients to implement it, but it's definitely the way forward. Finally we can leave behind OTR and GPG without sacrificing privacy, and there's actually a choice involved, whether you want to use Signal, an XMPP server or become part of WhatsApp.