whydirt said:
I think a better question is which of the new core classes is solid enough to possibly make the cut in 4th edition of the PHB.
I don't think it would be more than a couple, unless 4ed starts a different trend with core classes. And amongst the 12 new classes I hardly see one which covers a concept different enough to become core, maybe the Favored Soul as a more natural/from-birth approach to religious power, and perhaps I could see the Spirit Shaman (although it's quite a cleric/druid hybrid in concept).
But the nowadays-everyone's-pet class the Warlock doesn't seem a concept different than the Sorcerer, and the same is with the Warmage. They might offer an alternative mechanical take on the concept, but that's not what makes a core class IMHO.
Swashbuckler, Hexblade, Scout: three which fall in the middle of two core classes (Ftr/Rog, Ftr/Wiz, Ran/Rog) can work better as alternatives than core. Plus, one should actually hope that 4ed makes these options possible just from more versatile core classes or better multclassing rules. And the Scout especially... too similar to the Ranger.
The Spellthief is instead too much a niche. Make it a core class (which means you're going to support it in every product) and the D&D world is seriously changed by the fact that there are approximately as many spell-stealers as there are spellcasters*. This could make for an interesting setting, but if you make it core it affects all the settings around.
And the oriental classes won't likely be in 4ed PHB either, since there has to be a 4ed Oriental PHB as well to sell us
*well ok, this isn't true, just exaggerating to make the point