Did the people of Paradigm City lose their memories again following the Second Event? Due to the deja vu nature of the final scene (plus Roger saying it is still a "city of Amnesia"), it is suggested that is the case, but I can't help but wonder. Roger did state in his speech in Act 26 that he would not forget the woman called Angel, which implies he would not forget other things as well.
it was a whole new creation--of course no one remebers the previous world. What Roger meant was that the next time he saw Angel he would have some mostly unconcsious feeling about her.