One of the reasons that the 9/11 denier movement has essentially failed in its present form is because it has been unable to agree upon any sort of concrete policy proposals, focus on any particular type of concerted political action (street protests are technically not such), or even maintain coherence of mission. The ostensible goal of a "New 9/11 Commission" seems to have been lost in a cacophony of internal squabbling, absurd tangents (looking at you, Judy), and general disorganization.
This lack of focus is crippling to any movement seeking concrete change. After almost eight years of organizing attempts deniers have been unable to agree on what legislative arena they want to work in (courts? Popular votes on the state or Federal level? Agency lobbying?), how they want to get that work done (ballot initiatives? Arrests of the "perpetrators," whoever they are? Violent uprisings?), and how that's going to happen (consider the schizophrenic fundraising strategy of every such organization). The movement has produced no evidence that any of its donors or proponents should expect any forward progress whatsoever.
Deniers themselves have quickly diffused into other movements. They've moved on to other conspiracy theories, becoming anti-vaxxers, chemtrailers, birthers, etc.; other political movements, like the anti-Israel, right-libertarian, and peace movements, and so on. As evidence of this, consider a random screencap taken today of the only functional 9/11 denier Group on Facebook, the "9/11 Truth Library." This screencap is of the Group's Discussions page, which supposedly allows for more in-depth, long-form topics than appear on the Wall.
Anti-vax, environmentalism, chemtrails, anti-GE, 9/11ish, 9/11, anti-Israel, skepticism, black-ops theories, 9/11 - in that order. The "9/11 conspiracy theories" thread, like I said, was actually a thread started by a skeptic that has gone unaddressed for days. This movement is disaffected, bored, and unorganized. The 9/11 denier movement may rematerialize at some point in the future, but it can not succeed in its present form (consider that they wouldn't even be able to tell you what "succeed" means as regards their goals). Its financiers and proponents have no reason to expect any forward progress from its current leadership, organization or methodology. Might just be another "reset" year for the deniers.