You may see displacements to new bases. Fact is that 4% capacity cut is minimal for the Internationale side of things. That is maybe 40 pilots total.
What may happen is a large displacement out of NYC when the 330 comes in. Now that they have a CVG ER base, it will be quite cheap and quick to do so.
If there are in fact no fences, as has been rumored, DAL will start moving airplanes immediately.