If you have never attended court, the case is unresolved. The first thing that would need to happen is you would have to return to court to quash your warrant for your arrest for failing to appear in court. The resolution of your case will depend on the strength of the evidence and availability of the witnesses involved. It may be that the information is too old at this point for the prosecution to pursue the case. There may be motions to suppress evidence, depending on the search and seizure the police engaged in. Depending on your criminal history, there may be a resolution that your attorney and the prosecutor to work out in which you would not have substantial conditions or time in jail/prison, but the likelihood that the case will simply and immediately close is low. There are a lot of factors at play here to give a straightforward answer on how long the case could go for without more information.
I would be happy to help further if needed, and if this case is out of Washington.