Cilla, do you mean the ANNIE sequel in D.C.? I was there on the next-to-last night (when Dorothy Stanley went on for Dorothy Loudon) which was a Friday, and then on the last night when Dorothy Loudon returned for that final performance (that was a Saturday).
According to NOT SINCE CARRIE: (A good recounting of what happened during the Washington DC tryout)
Martin Charnin didn't allow Loudon to perform at that performance. Because Loudon didn't want to do an Annie revival instead of Annie 2.
Coney Island did play an important part in the original concept.
There were musical numbers. (I have a cd of all the songs written for Annie 2)
Coney Island is where Miss Hannigan and her cohorts discover a look a like for Annie. Where they decide to make a switch with the real Annie.
It was at this point in concept Miss Hannigan was to marry Warbucks so that Annie will have a mother and then kill them both and get his money. (This aspect of the plot ws carried over to Annie Warbucks version)
They sing to the double "You can be Annie, too (2)"