if you are using extract, i would not use anything but Wheat DME. it's already a 60/40 blend of wheat and barley.
some people may say that hops should be used only for bittering (some flavor comes through with 60 min anyway) but i've used hallertau and saaz for finishing on many a weizen and they come out great, it just might not be as "german" as the next beer. for a true bavarian, skip the 10 min addition.
other than that, it looks good!