Module and Theme Marketplace
I see a very long and bright future for Silverstripe. I wonder if there's a need for a module&theme marketplace, a combination of https://atmospherejs.com and the Shopify marketplace for modules & services.
While the market may be small, I see this could be a cool way for talented SS developers to create modules as packages which small clients could rent e.g. on a monthly basis. An awesome gallery module or a special social data feed importer module, or whatever. You get the point. Users could maybe choose between renting and purchasing a module. Developers could have a free and a premium version. Feel like there's a lot of potential there.
It could be coupled with a command-based installer (which can be built around composer), which a) installs dependencies (the open source ones, directly from Composer), b) checks subscription data & installs any modules, if allowed... A start of a conversation?