While we're still months out from the Fedora 21 anticipated release date and haven't even hit the changes freeze stage let alone any development releases, there's already some developers feeling that F21 is going to slip. Stephen Gallagher wrote on Fedora's devel list, "I forgot to open a ticket over the last week, but the Server WG has identified that completion of its core task (the Server Role API) is likely to need a little extra time. This is a blocker to release, so we figured it would be best to ask FESCo to modify the schedule in advance, rather than forcing a slip at the end."
To this, there's rightfully some raising concerns about delaying Fedora 21 given that it will already be almost a year since the last release by the time Fedora 21 is to ship. Delaying Fedora 21 would further hurt its users who enjoy Fedora for being the bleeding edge Linux distribution it's known as, which is great for upstream developers and many workstation users. As one developer summarizes, "Please don't slip Fedora 21 release even more. Fedora 20 is already showing its age and looking for another OS to test future work is not fun at all and it happens already."
Most seem to be in opposition to any major delays to Fedora 21, but it will ultimately be up to the Fedora Engineering and Steering Committee to decide the path forward.