Hello,
The next major version will be focused around 2 major features: the new Web interface and new Reports.
The Web Interface will be completely re-done. It will have a new look, feel, and it will work faster. The new engine that we are developing for the new Web Interface is opening new possibilities for us, so many new features will be added to the Web Interface as well.
The Reports subsystem will also be re-done almost from scratch. We'll add the possibility to build custom reports (without the need for any PowerShell scripting), to schedule reports and to send reports by e-mail.
Since both the features require deep changes in the Adaxes code, we are most probably not going to make any more major features for the next release, so, most probably, we won't add support for room mailboxes.
Also, tit'll take us about 6 months or so to complete the release, so it's definitely not going to be Adaxes 2014.2. It will be Adaxes 2015.1 somewhere in the first half of 2015.
In particular, I have seen in the forums a method through which to create a conference room involving a Powershell script but I wanted to know if enabling this feature was on your roadmap.
We have a request to support room and shared mailboxes in our Product Backlog, but it is not planned for the nearest future.