LNYOhio

Thanks everyone.  I have done some more reading about what Premium Economy consists of and think that as long as we stick with the Premium Economy upgrade that we have already booked it should be sufficient.  So at this point perhaps I will just wait and see what they assign to us in April.  I am supposed to touch base again with our travel agent next week so I will see what else she has found out since we last talked.

We are celebrating my oldest son graduating from college - so although they are "kids" they are all boys and all almost 6 ft tall.  They will be 22, almost 20 and 15 at the time of the trip.

We are booked on a June 18- June 28 2019 Coastal Creations Mediterranean cruise.  There are 6 of us in our family and we have 3 cabins.  When we made the original booking, we asked about business class but decided it was too much money times 6 people.  We chose to pay the $199 fee to go to "premium air economy".  Now my mother-in-law is having second thoughts about the long flight and I was looking at a flight class Delta has called "Premium Select".  On the Delta website, for a flight from Detroit to Nice the difference is about $1000 increase from a regular seat (from $2003 to $2905) - but way less than business class.  I called our travel agent and she checked with Oceania and they told her they don't book Delta "Premium Select" seats.  The travel agent said perhaps we could do an upgrade directly with Delta once the tickets are issued.  I'm not sure if that would work or not.  Oceania told her our included air would be booked on/around April 2nd.  

Some of my questions are:

• Should we wait and see what is assigned to us on April 2nd and then try to change to something else by paying the $175 air deviation fee?
• If we pay the $175 air deviation fee now, can we tell Oceania the specific flight we want and just pay the difference? 
• Would they tell us that they can't book the "Premium Select" seats even if we pay the $175 and the flight cost differential?
• Would the differential that Oceania would try to charge us be the $1000 or so that I see as the true difference on the Delta site?  Or will they say it is a lot more?
• Is there another airline I should check for a similar type of seat?  (My project for the upcoming weekend!)

Thanks!