My 2gil....

I kinda liked the WoW talent / specialization tree idea.

However i certainly dont want SE to just rip that off.
Some kind of simmilarties would be cool.

Atleast the option to specialize each class from various option. (even if its point based)
The current system is well ok until you decide to level another class & you have
to wait for the cooldown on the points distribution before getting the
full potential use of the other class.

So ya im game for a variation of a Talent / Specialization tree.

Kinda like... CNJ gets to choose if he/she wants to specialize in using
Wands over Staffs, Debuffs over Nukes etc.

(now im using CNJ as refrence as BLM becasue of the possible future changes ofc.)
Not saying CNJ fits better as BLM than THM, but im as clueless as everyone else.

Suggestion: (just an example) Prolly been discussed/mentioned before.

Conjurer
''▼'''''''''''''''''''▼''
BLM ___ WHM

Thaumaturge
''▼'''''''''''''''''''''▼''
WHM ___ RDM

This way i wouldnt mind spending points on unlocking spells for my progression choice.
If you pick BLM patch, you have more Nuke & dot spells to choose from.

And Whm, obviously healing & Protection.
(But with a points system in place you could get some sub-spells for your BLM aswell from the whm Talent ree.)
The possibilty of spending points on other class talent trees could also be useful.
All you have to do is level another class, spend some Subskill Points to unlock some abilities from other classes and have the option to equip use those on your mage.
(Sounds really confusing now that i read my own post, could mean re-vamp of things in the UI. -.-)

I'd replace the slot points cost with talent tree points.
That way your only limitation to how many spells you can equip is dependent on your current class (rank) level.

When reading this it sounds like a complete wow ripoff, but things can be unique even with simmilarities.

- Sorry for any missed typos.