Okay... So talking just about 5 nights- Rotations for your idea would be...
A. 1923, Marvel, Pirate, Lion King A, 1923 (B?)
B. Marvel, Lion King A, Pirate, 1923 (B?), Marvel (B?)
C. Lion King A, 1923, Pirate, Marvel, Lion King B
In this plan only 1/3 of diners get the Marvel B experience or the Lion King B experience.
Even without a Pirate Menu you would end up with something like
D. 1923, Marvel A, Lion King A, 1923 (B?) , Marvel B
E. Marvel A, Lion King A, 1923, Marvel B, Lion King B (This will likely be the one everyone would want)
F. Lion King A, 1923, Marvel A, Lion King B, 1923 (B?)
That leaves it where 1/3 of diners are missing the second show at Marvel and/or the second dining at Lion King. I know some cruisers love 1923 but on a new ship almost everyone will want both Lion King experiences and on a Marvel heavy ship I am guessing many Marvel fans will want both Marvel experiences as well... which leaves many unhappy guests.
There is a reason that
DCL does not offer animation magic unless all diners get a chance to enjoy it. Guests will be unhappy if they feel they are missing out on experiences. It is why 5 night have both a Pirate Night and a Let the Magic Begin where everyone is getting the same menu.