This has already been said nearly as much as "Da2 Sucks".
That being said, i'm glad they're doing this, but i think that in order for DA3 succeed (Critically, and commercially), they need to understand what can be done and what other games have that they can learn from, and make their own, they don't need to imitate anyone.
Another, they need to understand that the Mechanics from DA2 were good, is the execution that was bad(imo), like the combat, it was more active and fluid, that's GOOD, but they NEED to slow down a bit, not DAO levels but perhaps other games like Assassins Creed or The Witcher 2 levels, and it needs to be less tight, DA2 was not more "Actionny" than DAO's, it was just as mechanic as DAO's, just faster, too fast(imo).
But, Ignoring everything i just said, the 2 things that i think they need for the project to succeed are:
1. Time, Nuff Said
2. Care and Love for the Project, if they really make an effort, and try as much as they can, they can do it, they can succeed.
They have talent, the Problem is whether they use it or not.