I thought it was great. Honestly I liked it nearly as much as the original. Amazing acting and story telling.
With great review and scoring a ton at the box office and growing, you can bet their will be a sequel.
My Prediction on the second one:
The virus spreads across the globe killing the victims in months (remember the weaker strain was released, not the quicker killing improved one). Scientist across the world scramble to cure the pandemic, including Will (Franco). In the meantime Apes across the world are also infected, but they become intelligent instead of dying. They start to organize and arm themselves.
Since the pandemic comes on quickly and kills so many in a short period of time. Caeser and the Apes in the first one aren't hunted down by the humans! Eventually a cure is discovered (probably by Franco) and humanity is saved. However, the world human population is devastated. Say 3/4 are killed by the virus. The movie starts out running through the pandemic spreading to a cure found rather rapidly and then fast-forwards to shortly after the virus is cured. At the point, Apes and human are in open combat with each other! The humans are losing and the humans decide to go nuclear! Most of the Apes and Humanity are bombed into the stoneages.