How much of an affect will the recent retraction of the first paper linking MMR to autism really have?

The prestigious medical journal The Lancet recently retracted the infamous paper by Andrew Wakefield that has been hailed by vaccine opponents and derided by mainstream science. Dr. Wakefield now faces significant ethical charges stemming from an investigation of his conduct. So, will this have any impact, or have people already formulated their opinions on the matter? Will vaccine opponents assume this was a conspiracy/witchhunt or will they honestly and openly revisit this issue?