See what you are asking is "trade secret" stuff. That is in the last 11 pages of the DCI/ASA/SKW Air Service agreement that was signed. You are not going to see that unless you sign one big ole thick NDA, and therefore we cannot talk about that. Not trying to be a jerk, but that is big stuff that will land you in court.

This table was published at the end of last year in the 10-K. What this means is that at the time of the DCI Ar Service contract expiration in 2020.
We can assume all that we want, but go look at the DCI contract. It is on the SEC website. It is a good read. Fact is that you did not get the aircraft all at once, and I would be floored if they left all at once, but this is what the last day of that contract has in terms of service.

Now, there will be amendments to that agreement. ASA's second hurdle is next fall when they get to DOS+5 on that contract. You need to be in the bottom two as it pertains to total cost. I do not see you or SKW being there. When that happens there are certain things that are spelled out and some that are not that will happen. Most likely you will see DAL tell your company that they will not be paying the leases on the jets. It will come under the responsibility of the service provider (your airline) to pay the leases to fly the jets. They will not just be transferred leases from the DAL name to ASA or SKW. What that means is that they will be more expensive. SKW Inc may balk, and say no way.
The catch 22 to all of that is then if you do not have a jet to perform the contract you are in breach and DAL can void it. (Just my assumptions after reading the public copy, but in the end that is why I would not make EV my home. I had great seniority and good pay, but I say 10 more years tops before the bottom started falling out)