ArenaNet:Guild Wars 2 suggestions/Class Combo Evolution

Class combo Evolution (Discussion)
your choice of a secondary class should give the option of converting into a new profession with skills of both along with entirely new skills and armor unlocked by the conversion some examples are Monk+Warrior= Paladin Ranger + Necromancer = Black Ranger   Assassin + Monk= Inquisitor Warrior + Elementalist =Elemental Knight


 * Why this is a good idea
 * it would give a new spin on the old two class system
 * it would incorparate more character customization possible


 * Why it may not work out
 * it would make the game more complicated
 * it may make it confusing to spot what classes certain characters used to get where they are