Tough question to answer being on the outside looking in. From knowing what's been going on lately, I'd be led to believe many of them know of problems and are questioning. That they've looked to their own set dates and seen them all fail. Maybe 1975, maybe 70 years (a lifetime) after 1914, maybe 80 (if some of special mightyness), maybe the end of the century. And as each comes and goes, more dispair.
But on the other hand, the world has been a tumultuous place the past couple of years. If they had any doubts about their religion, many have probably pushed those thoughts deep down inside now. Right now, they could smuggly be picking at symbolisms and applying them. See! The dragon turns on babylon the great. Babylon is in Iraq. See! See!
From my own contact with JWs, my father seems as happy and pleased as always and just as gung-ho for JW activities as always. Of course, he is in his late 70's and a bit out of touch. He buries his head in the sand to negativity. Yet my sisters seem to have adopted a very leniant attitude. One allows her son to move his fiance into her house, into his room. The other allows her DA daughter to live at home, get pregnant, move away, and move back.
Another JW guy I know talks about it as if it's a completely different world. Or maybe it's just him. He talks of some of the strict types, but criticizes them for being hypocrites. He himself is devoted, but a bit of a rebel (or at least would have been in my day). He doesn't strive to attend all the meetings and apparently makes it known where he thinks things are wrong.
So it seems to me that JWs have mellowed over the years. The way I was brought up in the 70's and 80's as a JW, this stuff wouldn't have been tolerated. I think it is all wearing on them. A lot of the urgency is gone and with it, there is no real fear to stay close and follow every rule.