They shouldnt make anymore movies after #3, you cant keep something going just because you feel like, it'll bomb eventually. If anything, they could do a mini tv series type thing or something, short hour long episodes or so, but have it in a continous timeline. Then they could put whatever crap they wanted in each episode and it wouldnt ruin the franchise. I seriously think tv series are the way to go these days, theres only so many movie you can do before you screw one up and everyone hates it...plus theres a lot more freedom on character expansion and so on. Look at how popular this franchise is, everyone wants more after #3, but at the same time, anymore movies would kill a good thing, whereas a tv series would be perfect.