CC4 is not in the planing as long as I know. But it does not mean that they have not being working. ProFantasy have lauched A LOT of material and upgrades for CC and their add on and are still working on upgrading others products. I know that they are planing a update in CC3 like the one that turned CC2 in CC2 Pro.
The News page is this one: http://forum.profantasy.com/comments...page=2#Item_13
And one tip. First buy only the CC3. Go adquiring products as you learn the basics and really feel the necessity for more options. CC3 plus the free symbols on internet is already a GREAT product.
And I REALLY sugest that you get the Tome of Ultimate Mapping togheter with CC3: http://www.profantasy.com/products/tome.asp