Technically v0.13 haven't even been fully released yet and people already ask for v0.14
I think there was a post at some point that v0.14 might start releasing as beta 6 weeks after the full release of v0.13. However that was an uncertain estimate even when it was made and likely shouldn't even be considered an official estimate. Since then people have reported "must fix asap" bugs so it wouldn't surprise me if all we can get now is "when it's ready".
Personally I won't push for new releases because I have tried it on the other side as people asking me for a new release (totally unrelated to the headmaster, but still same situation). This kind of pressure isn't fun and could result in being a bit too eager to release ASAP, which makes people rush stuff and more bugs slips in undetected. Fixed lists of what to include in next release combined with a fixed release date is poison to quality as well as how enjoyable the work is.
Sorry if this might come through as a bit harsh, but I have nearly 20 years of experience getting such questions and they aren't fun. I mean I have tried announcing a long term plan for some feature, which was estimated to take a year to create and then after just two weeks people started posting "why isn't this done yet? Are you guys lazy?". This kind of behavior can be so annoying that it becomes tempting to not announce future plans. Just wait for announcements. Odds are that if a release date haven't been announced yet it's because nobody knows yet.