They should do it based on the same way the game has progressed in the past. The games were succesful because each iteration was "their" way and so they bought it. It's a bit ridiculous to think those that have bought these games in the past shouldn't have a say because it isn't a first release, it is a fifth. They can call it a reboot all they want, but it means absolutely nothing beyond an excuse to milk the money throughout it's life. I am dying for the game, however, I am not the slightest bit optimistic. I just don't trust EA.
In my limited opinion, as I haven't been reading up on it for all that long, I don't think it is going to be the smash hit. My regular daily forum I call home hasn't spoken a word about it in at least the last few months. Not a single post.