Multi-site is a highly requested featured and we added to our schedule.
Our major concern is currently StatComm needs a serious performance boost before take the multisite step. Also the current develop line is aiming to provide a safe way to migrate from unsupported plugins, please take a look of planned Roadmap
. We're working to merge the multi-site feature along the migration tool, both features will be in progress on June.
Stay tuned and thanks for your comments. Nice site by the way.