A robust set of templates
Develop (and allow submission) of a robust set of templates or standard items for functions such as, flow charts, decision tree, bulk sticky notes (variety of colors with a set of 20 created as part of the template), process diagram, mind maps, etc. Each could be included on any board by selection then edited for the specific purpose.
This would be complementary to the other post about creation of personal/individual templates
Colin Mair commented
It would be great to partner with business/agile process experts, like HBR.org, Strategyzer.com or similar, so that the array of templates updates and grows over time.