The hopes are also that this collaboration inspires other agencies and individuals to get involved. I'm a big fan of CMB2 and use it on Post Status for a whole lot of stuff. I'm thrilled to see this collaboration — but am especially glad that Justin Sternberg is at the helm.
CMB2 is a developer's toolkit for building metaboxes, custom fields, and forms for WordPress. WordPress-centric development companies Human Made, Zao, and WebDevStudios are joining forces to work together on CMB2 and it now has its own Github organization.