It does not matter whether Tara dies.
What is important is that Jax will find out Clay ordered the hit.
Clay will be dead by Jax's hand, Jax will be Pres, and the series will revolve around Jax's and his new found love for his father and his fathers vision of the club.
They will attempt to go straight and find out it's not as easy as it sounds.
There is the story line for the next few seasons, all wrapped up with a bow for ya.
http://www.youtube.com/watch?v=UPw-3e_pzqU