Hello, my name is Justin and Í'm new on this forum, but I hope I can give my opinion of what I'd like to see in SC2.
The first thing that I would find cool, is that The Netherlands (Holland) would be seperated from the rest of the benelux(Low countries)So as Belgium and perhaps Luxemburg.
Secondly, In stead of just 1 corps, Holland would have had a much bigger army than in SC1.
For instance, Holland had quite a good airforce which was located near Den Haag (The Hague) and some naval vessels (submarines, cruisers) Those ships fled to Britain after Holland was defeated. Also the government fled to London, but that isn't important for the game...
About the airfleet: Holland had a very good fighter, the focker ???. I now that because my grandfather, who lived in Rotterdam, once saw 1 Dutch fighter take out 2 german fighters.
(my grandfather also experienced the bombing of Rotterdam)
In the years before the German invasion, Holland had built up its armed forces, and positioned it behind the 'waterlinie' (waterline) This was a defensive line which could have defended against the germans, but they had tanks which crushed trough the defensive lines of The Netherlands but also the rest of the BENELUX.
So you could say that 1 corps was located along the borderline, 1 in perhaps Amsterdam, 1 airfleet in The Hague and a cruiser in the port of Rotterdam.
This is all a suggestion, but historicly correct.
I hope some other Dutch people can add some information.