If you were to lead the storyline where they end up finding a portal that leads to another dimension BAM! You can create a whole brand new map! I would love to see Nickelodeon take part in this invasion, just imagine how many more characters that can be added! Danny phantom, fairly odd parents, jimmy neutron, etc! This game will honestly be the best mobile game ever that will last years!!
Now I know this is a huge stretch considering trying to get Nickelodeon to agree to this, it will take quite some time to even start that idea, but just something that I would love to see in the future. Let me know what everyone thinks about this idea!