They haven’t forgotten her but, at the moment, Maggie only appears in Marge’s 8-hour task, “Walk Maggie”. She doesn’t appear as a separate character and doesn’t have her own tasks.

Will she be a separate character in the future? Maybe. EA say that one of the reasons they set up the official Facebook page (at for those that didn’t get here that way) was to gather everyone’s ideas about what they would like to see in the game in the future. So, if you really, really want Maggie (and have some ideas about what her tasks might be), post your suggestions there.