We started a document yesterday on gobby.fedoraproject.org to sketch out ideas for webapp/service development and maintenance for 2015. If you're interested, please check it out and add, edit, and annotate to your heart's content.
It is currently kept in gobby. See this wiki page for information on how to access that: https://fedoraproject.org/wiki/Gobby
This is mostly for brainstorming at this point. After the upcoming holidays, we'll move the contents to a wiki page for prioritization and future reference.