Could this upcoming supreme court ruling provide a definitive stance on gay marriage?

As someone who has spent numerous occasions looking into the constitution of the United States, I have taken a very strong stance on gay marriage. When a country was founded on the basis of the separation of church and state, I fail to understand how it is even reasonable for the government to define marriage as a man and a woman. Recently, the supreme court has decided to look into the legality and validity of proposition 8, a California proposition which brought a definite definition to marriage as between a man and a woman. Proposition 8 has been under incredibly heavy scrutiny since its narrow passing and now could be possibly completely shot down. Many proponents of gay marriage are anxiously looking to this decision, hoping that a definite answer can be provided. This opinion piece by Walter Olson published in USA Today questions how important this case may actually be. Olson argues that the Supreme Court is likely to make a very slight decision, one which won't be decisive enough to settle the issue of gay marriage. There are two specific pieces of legislation being scrutinized in the supreme court, proposition 8, as previously mentioned, and DOMA(Defense of Marriage Act). Olson believes that DOMA is likely to be deemed unconstitutional and proposition 8 is up for grabs by a small margin but will probably go the California voters as was previously defined in Hollingsworth vs. Perry. I find it unfortunate that such a situation is possible. When looking at a constitution from a strict POV, there simply is no way that marriage should be restricted. The United States is the supposed land of equality, and until the government acts as such, I fail to agree with such an assumption. In the future, it is my hope that the government takes an assertive stance on this controversial issue and sets the record straight. There will always be individuals who have a skewed and blind perspective and fail to see the injustices of restricting marriage rights. Hopefully, there is a transition where the majority of Americans decide to support marriage equality and take the initiative to truly provide equality for each individual regardless of sexual orientation.
Source: http://www.usatoday.com/story/opinion/2012/12/07/gay-marriage-supreme-court/1755135/