Wait... what?
In Wow you have a few points in the other already-selected-for-you-trees to spend after 31 in your chosen tree. How does having 4 Callings and 7-8 subclasses for each Calling make less crossover? What.
Let's take a warrior. You can choose three subclasses to specialize into, you decide how much in each tree, to an extent.
I don't see how this will make less options.
By the way, if you go into a new game numbercrushing and -tearing will you ever find something better than WoW?
The answer is no. You will not, because when you started WoW, you most likely did not have the amount of experience with MMO's that you have post-WoW if any.
Care to elaborate on the 'restrictions' you find 'too many'?
I don't know about you, but I play to have fun, maybe you should reconsider your reasoning behind why you play.