Instead, we should shift our focus from porting specfiles to upstream projects. At this point, if some software is easy to port it was probably ported already; what we're left with are either tough nuts to crack or projects with few people relative to the codebase size. Some projects that come to mind that could use attention are GTK, Mercurial, Samba, wxPython, PySide, Koji & Fedora infra, Ansible.
I don't know yet what our priorities should be here, but that's the general direction.