I think the Am B division is a good idea, as it gives the really good novice teams a place to go without having to go am. Like it or not, there's going to be some teams that arn't good enough to compete in Amateur A paintball, but they're going to go to the events and still trash real 'novice' teams. There's several teams that played almost every Millenium event last year as Novice, that will probably never play Amateur, but arn't really 'novice' either.
Also, with 4 Divisions, that means that there will be more teams making semis, and finals, so more teams have a chance to get a result.
I think the Player cards are a good concept, and they can be put to good use. There's a strong involvement with NPPL admistration at Millenium Events, and I'm sure that it's not too hard to share data between orginisations. The Player cards are a good idea, however the Millenium organisers were not able to use them to their full potential,... yet. They're a step in the right direction, and the bigger the sport becomes, the more important they will be. I have heard that they will be much more usefull next year, so maybe this is going to be one of those things that will take some time.
Anyhow, i think these are two things that are going to help the Millenium series grow next year; to improve on things that can be improved, and to change things that don't work.