Please sort by faction color and captured portals (blue, green) and empty (white).
As far as I'm aware, this will not be happening. Currently, only the keys you're actually looking at plus some more down get loaded, so about 10 at a time. If you'd want to sort all by faction (or resonator status/mod status/whatever), you'd have to load all the keys at once, which strains the servers. In addition, what happens when a portal gets destroyed/captured? How often should you update the keys to reflect that? And then, you'd have to load all keys again.
Also also, when a key is loaded, it's physically placed on the map. Try going outside the viewing range of a portal, and then look at its key. It'll suddenly appear even if it's outside the normal viewing range, because the key loading placed it there. Loading all keys at once would dump all portals on the map, which would also strain the client.
TL;DR: Already confirmed as not happening, or at the very least, not unless the servers run smooth as butter.