If they make Tracy act true to form the first thing she'll ask is 'Oh great - who's going to babysit Amy now?'

It would be nice to see a softer side of Tracy - but I don't think she has one.

I think she does have, and it's been coming out gradually, esp with rescuing Carla etc.

When you consider everything she’s been through in the past year (jilted at the altar, murderous fiance, bus crash, mother dying), it might be a great time for Tracy to suffer a nervous breakdown?

I hope so, and hopefully no one shows her sympathy. Like how she made vile remarks about Steve and his depression especially in front of Amy.

It won't be Tracey, who is a fictional character, it will be the writers deciding how the character will react. It will them we should judge, not the character.