I personally believe that Islam does not need a reformation, but that's just my belief. It is a religion that has a set of rules and regulations that can be taken or left.
So I don't think that is the real question. I think it should be "Do
Muslims Need a Reformation"! Here, I'd say that hell yeah they do! Muslims are the humans that do things according to their understandings and desires of and with Islam, not Islam itself. Islam is basically about worshiping a single God alone. Everything else can be ignored at some point, and that is what it matters as I see it.
Just my 0.02$