My Titanic has not been blessed with chevrons.
At the 5star level boasts 850 per slot.
Now at level 726, the Titanic is still part of my active fleet.
It may help to know that I don't have a game strategy that requires the largest possible fleet. My strategy is intended to keep me entertained. I learned from past games that attempting to maintain the best possible throughput leads to burn out. My fleet, albeit smaller, gets the job done - and thats all that counts.
So yes, your Titanic may attain a perminent presence in your fleet. But the reward ships are getting bigger, so then again - maybe not.
Note; I just survived my fleet. The last ship that I purchased from the shop, (to place in the fleet) was an event ship from the Statue of Liberty event. About a Year Ago.