I think we have to distinguish between the
combat roles (which is how the terms we've seen were used) & the noncombat or party roles.
Roy: Martial Defender. He's the leader of the group, but not a Leader in (what little we know of) the 4e
combat sense.
Durkon: Divine Leader. Again, this is looking at the way the combat role term was used, where cleric (which Durkon is) was placed here.
Vaarsuvius: Arcane Controller. Their usage of the term, & the placement of wizard in it, seems to allow for significant damage-dealing capacity as well as broader utility spells.
Haley: Martial Striker (& still rogue).
Belkar: (Divine?) Striker (& probably still ranger).
Elan: Screwed (unless they get bard into PHB1, which they may not.)
