This is a very unfortunate trend in rpg's these days. Either classless systems like skyrim or the standard 3 , warrior, thief and mage.
I'd really like to see a revival of the wizardry class system where you could change classes when meeting certain stat requirements. loved working my fighter up to a samurai or mage to a bishop. Finding the thieves dagger and changing my thief in to a ninja. Still the most rewarding item I've ever found in a game. Made even better by the fact that I had no manual and no internet so I had no idea what it was going to do when I used it's special power.
Of course a dnd game would be nice. I could spend days picking classes, kits and rolling my characters. I was very sad when they switched to point buy system vs rolling.
Sorry to veer off topic I got on a roll.