Emotions on all sides can run high. The recent changes are more sweeping in nature than anything in many years and all the consequences may not be known at the present time. We don't know. We can say there will be changes. Consider the role of the public agencies that traditionally provided supporting infrastructure wherever business interests requested, now saying they won't be doing that role anymore, that new development will have to come where adequate infrastructure is available or planned for the near future, or the developer may choose to pay for it himself, an expensive and therefore not very likely option.
Examples are sanitary sewers, highway capacities, and school capacity.
The times are changing, but it's unlikely the building community will just fold up and go away. New Castle County remains an attractive area to do business. The development activity is an important part of the economic base of the County and is likely to remain so. If this were true, it would certainly simplify the work for engineers and architects. Within the small state of Delaware, there are numerous building and building related codes in use at any given time.