You'll find that over the last few years, premiership teams take a couple of years to develop and that it takes a solid previous year with a young team to become a premiership team the following year. e.g.
Villa 2010: had a strong year in 09 with a number of year 11 players who then with the addition of year 11's like Welch the following year had the experience and talent to go undefeated.
Padua, Ash, Eddies 2011: Padua in 2010 had a huge number of younger players in the side who were pretty competitive and then the following year when seniors added a couple of grade 11's to the mix who fitted into the side. Ditto with Eddies and to a certain extent Ash but they gained an Aussie Schoolboy that year in Maloula who helped them a lot.
Peters 2012: Same again had a young side in 2011 who gained competitive 1st XV experience and then the likes of Sorovi, Laurie etc added the missing pieces in 2012. Personally i thought Eddies were the best team in 2012 and they had the players and experience but they didn't handle being favourites and the pressure last year.
Iona 2013: Wilkin and Burke in their 3rd year of 1st XV, a heap of players who played 2 years of 1st XV, a good side in 2012 plus strong year 11's like Carroll and Yabsley in the side.
In regards to next year I think Padua will have a young side again but I predict 2015 will be their year if they can keep all their players at the school. They will win games next year though.
Lauries I think will perform very well next year and win a majority of their games. They have defeated Ashgrove in almost every age group for their year and although got belted in a couple of games this year...had a large number of injuries and they have depth which the 16a's showed. Ashgrove and Eddies will perform well again but if they have a premiership winning team is hard to say. Iona wont have many experienced 1st players but they have a strong age group...Villa I'm not sure if they can win a premiership and Peters and Pats i don't know a heap about.