I have actually pre-ordered it already.
Are you mad in the head? You'd pay for a game before you know anything at all about it...I hope ot's not digital preorder and you have a chance of a refund.
I own every Halo game on every platform that exists. Even a bad Halo game tends to still be somewhat enjoyable.
The game engine/visuals alone is worth the purchase in my opinion.
As for Pre-Orders, it's $10. It's a physical copy.
And by law... I am always entitled to a refund. - And I am not afraid to take the legal route against a business if I have to, did with EA and they copped a fine... And I still got my refund. ;)