In terms of meaningful mages not yet added Time Mage and Geomancer are both up there for sure. And yeah, they aren't going to mess with the range really for Casters or Healers. The closest we are likely to get is something like Red Mage, and I kind of doubt we will see a Healer like that. It's theoretically possible, but it just seems unlikely.
As for ways to do a Whip as a weapon... maybe just make it really obviously big? They do manage to have daggers as a weapon so it can't be too impossible.
