I'm not sure whats coming, but i think we are due for some post-eod content. I think it's nice they made s1 playble, but it's still old content and the quality is way better in all "newer" content.
As far as I know, the EoD stuff is done and they will announce the next (small) expansion at some point in the not too distant future. Which worries me, living world of just 2 patches...which, took a YEAR to get roughly 3 hours of content on average.
Gyala was't Living World. They killed Living World off and don't do it anymore, it's just mini expansions now and maybe one and a half content updates inbetween.
Yeah, Gyala was the post-release content update for EoD. Similar sizes of post-release updates are planned for every new mini-expansion, plus the mini expansions themselves.