yes but he can already do mage/warlock, so that doesn't seem like that great of an idea.

my suggestion would be put the paly thats on your main account on the one with the other mage so u can swap both pally/mage's to spread the badges evenly between the 2 mages and 2 pallys. do mage 1 pally 1 on one run, then the next run do mage 2 pally 2. if thats a concern at all of yours. if not then i wouldn't bother transfering any char. not much point in moving the lock as it gives u the same option you currently have of mage/lock/shaman/priest/pally, unless you move him to priests account which wouldn't be a bad idea. have your group be this:

Prot pally, mage mage warlock Resto shaman.

not a bad option as you'll get the +spell damage/healing totem still, just no totem of wrath, but also gain Imp blood pact, soulstone, and dots.