Feats could be the wild card in all of this. For example, we do know there is one feat (golden wyvern adept) that allows a wizard to make good use of a high wisdom.
One of the advantages of 4e is because ability stats are better contained (ie you aren't going to see strength 40 fighters) you can base more abilities on them directly, because the scaling isn't a problem.
So you may see lots of feats that add +cha to X, and +int to Y.
One of the advantages of 4e is because ability stats are better contained (ie you aren't going to see strength 40 fighters) you can base more abilities on them directly, because the scaling isn't a problem.
So you may see lots of feats that add +cha to X, and +int to Y.