I'm not sure I understand what you are worried about... Are you worried about combat becoming too complicated?

Is that what you mean?
Well, I do not think it would be too complicated... I mean, I think they're trying to add variety and fun (and tiny bit more challenge) to the combat, is all.
What I'm worried is how difficult the enemies AI will be. I mean, I do not want another "Ninja Gaiden hard" combat game.

Also, I'm worried about the whole combining 'short swords' with the 'long sword' skills... Besides that, I'm not too worried...
But, I do not think you should worry too much... Unless you're worried about the magic combat as well? Could you be more specific about your worries?