I believe Season 6 is going to be the deciding factor. They can either A) make the season a way to prepare for the movie, I.e. Wrapping up character arcs, etc. Or They could make it really kick ass and leave it open for at least a couple more good seasons after the movie. But as long as they know when to end it on a high note, it'll be okay. Which brings us to our next concern: Gen 5. Some big questions include; what will the art style be like, will we see any old characters, will it be set in the same universe? And if Gen 5 is drastically different, what'll happen to the fandom? I personally have no problem with the series ending on the movie, as long as it doesn't feel like they've pulled the plug too soon. And if they do continue it, I wouldn't mind as long as it still holds the quality characters and storytelling we've all come to love.