I think it'd be neat if that were the case; I'd love to see the power sources have more impact on the mechanics and flavor of the classes.
(If I were designing the dreaded 5E, I might be tempted to have different power/class feature advancement rates/charts for each power source, but have all the classes within the source use the same one.)
But as I said, I couldn't say for sure one way or the other.
*** Top Secret Memo ***
Mouseferatu has been secretly contracted by WotC to design 5E D&D over the last two years.
*** (end of memo) ***



