I'm wondering if this is the year that Amy finds out Tracy sold her to Roy and Hayley as a baby... There seemed to be a tiny bit of foreshadowing of this in Friday's episode - Nina and Amy becoming friends, a reference to Roy being her godfather and of course, the symbolic gesture of Rita handing over Elsie Tanner's rings, which could also be the beginning of Amy as a character in her own right.
Lots of factors might come together: she's at an age where she's wondering about her parents relationship and how they weren't together properly when she was born, plus, she'll probably wonder why Roy is her godfather when Tracy has never liked him. Also, she'll be in Roy's orbit if she's becoming friends with Nina - maybe she will find something in the flat, a picture of her with Roy and Hayley, perhaps, from the brief time they looked after her?
It probably won't happen in the near future but Nina and Amy could start putting 2 and 2 together to make 50... I could be over thinking this of course, but she must find out at some stage (this is Corrie after all) and she's precocious enough to investigate it all and maybe confront Roy about it?...