ohh can you always respec?

yes.

u can also by 4 scrolls, the same system like in wow, expect u can save 4 specs instead of 2.
u can use 3 talent trees at once and have a total of 9 trees

WTF im already confused

u have a total of 9 talenttrees.
u can use 3 of them at the same time.
u can buy a dual talent specialization like in wow (called scrolls in rift), but instead of 2 varieties like in wow, u can buy 4.
u can reset ur scrolls like in wow

alright

Ohh and what would be the best class for a rogue for pve? some pvp?