What's coming next? DungeonsXL 0.17 will focus on improving the wave and mob spawning system. A list of issues that have been added to this milestone can be seen here. Bugfixes are supposed to be released in running 0.16.x releases.
This update might take a lot of time because I plan to concentrate on FactionsXL, ItemsXL and my own server more now that DungeonsXL is in a state that I'd call close to being finished and to being as stable as it can possibly become without more profound testing in a production environment.
Thank you for all of the bug reports and ideas to improve DungeonsXL. My first contribution was nothing but a change of a few lines to get it updated to 1.8, and without so much encouragement, I'd never have considered to dedicate this much time to it.