well OBL is to some extent a cultural construct and i don't expect that construct to be replaced with any kind of true reflection any time soon. It's certainly not in the interests of the political consensus in Washington and the UK or the media to start a project of accurate reappraisal.
For example i guess most people would think that when the US decides to bomb a country there would be tones of evidence linking OBL and 9/11, well there wasn't, or at least none that has been disclosed. Even the tape with Bin Laden on it was found after bombing had started.
Robert Miller told the Washington post that 'we believe that the plot was hatched in Afghanistan but implemented in the UAE and Germany', that was nine months after 9/11, and the FBI never had OBL wanted for his links to 9/11, but for previous crimes, and there's a good reason for that, there wasn't enough evidence for a jury to convict OBL in relation to 9/11 but obviously enough to start bombing a country despite aid agencies warnings millions could be killed as a result.
Here's a site, check out the link regarding the FBI most wanted page, it doesn't mention 9/11http://www.informationclearinghouse.info/article13664.htm
There are many anomalies regarding 9/11 and the US invasion of Afghanistan to go into here, but i'ld guess the perpetuation of the myth will continue, the reality would be too unpalatable for the establishment.