That's a good question. I'm not sure. It really depends on what API changes upstream is making, and who depends on the js-jquery1 compat package. At first, I would have said yes, to get the security fix for
https://bugzilla.redhat.com/show_bug.cgi?id=1399547 . However, I now realize that the patch they had applied to 1.12 for that was never released, and was instead reverted in all branches before 3.0, which isn't even packaged (yet) in Fedora. So now, the options are to backport the fix to the versions in Fedora... or to ignore the issue until we update to 3.0. Even if we ignore, it doesn't resolve the question about what to do with the compat packages for jquery1 (and maybe a future compat package for jquery2).
Whether or not we upgrade or backport a security fix, I can't proceed at all on the F24 branch right now.