I've created a "scitech" FAS and COPR group for the SciTech SIG (https://fedoraproject.org/wiki/Category:SciTech_SIG). My immediate goal is to create some common repositories for updated builds of scientific software for EL7 (& 6). My thought is to have a have common repository (https://copr.fedoraproject.org/coprs/g/scitech/common/) for updated libraries, then individual repositories for updated programs like octave, julia, etc.
I'm starting off with a suitesparse44 package that is split into individual libararies and can hopefully be installed in parallel with the system suitesparse.
Add yourself to https://admin.fedoraproject.org/accounts/group/view/scitech if you want to join the effort.