The sorcery roadmap and wishlist are implemented through bugzilla (bugs.sourcemage.org). Bugs are organized by version, if a bug has a version of 1.13.x then it will be fixed in that sorcery release stream (and all subsequent release streams). Please see Sorcery Development Process for more information.
1.14 Roadmap (current stable/test)
1.15 Roadmap (current devel)