Yes, its a bit early to be thinking about MP 3.0 with 2.9 just out the door but hey, gotta start sometime. Anyway, I’ve decided that active development on 3.0 won’t start until middle or late spring 2015 at the earliest. I have a tentative release date of December 31st, 2015 for MP 3.0, which could change depending on progress. I do have a few ideas for features — some my own, and some handed down by other users — for Manga+Press 3.0, which you can see on Github under the 3.0 Milestone.
To be honest, the UI around the Series taxonomy is going to be my primary focus for 3.0 especially since fixing the comic navigation with regards to category structure is what took up the majority of my time. I found out that the forked versions of the WordPress post navigation functions I was using actually did a better job of what I wanted versus trying to use WordPress’ built-in functions.
Anyway, see ya in the New Year!