Most people have quit the mod version because of the hackers and this is why I don't think the ArmA 2 version will have many players left once stand alone is released. This should open the door for DaiyZ to be more openly accepted instead of having to be kept "secret" like it is now. I doubt there is going to be any SP element in the stand alone beyond maybe a quick training/tutorial section like the ArmA 2 Boot Camp & Armory sections we have now, but I could be wrong.
FSL: