Whatever the red mage does, since this is an mmo and people will pick you for being good at what you do (in FFXI red mage was a buff pez machine) then you have to design the characters around what you want the class to feel.
For example from most FF red mage are quite dangerous - you wont get this feeling unless you bind any buffs to incredibly powerful self buffs (or more powerful on self) or make all of these spells require melee attention (burning lotus applies enfire, does damage). There is a reason why the Red Mage uses a sword rather then a staff.
FFXI red mage will not comeback unless SE noobs it up. Ignoring blue mage I think you could make the Red Mage take blue's place in a FFXI lens equivalent (had some variances (could buff/debuff) but mostly an awesome spike dpser - blue did some amazing burns).
