As we are continuously looking for ways how to improve OTRS I would like to inform you that we lately started using otrsteam.ideascale.com where we collect ideas & features.
Besides that we started a OTRS community survey to get a better idea in what markets and use cases OTRS is in use. I'd like to encourage you to participate in the OTRS community survey http://www.surveymonkey.com/s/QCSWFXG.