Traditional iris means Barry's girlfriend/wife who is a reporter.
I'd like that, too. But, you know what I meant

Along with no Joe West (although they definitely wouldn't use that in the movie, since its a TV only thing and not something the comics did),a nd without Barry/Iris knowing each other as kids. Basically, Iris from the comics circa 1956-July 2011 (although obviously more like the more modern stuff, not the kind of generic character of the silver age).
That said, I'm sure the movie will be terrible, so if they even use Iris she'll probably be a psychotic, murderous dominatrix who is the true killer of Barry's mother or something equally Snyder-ish. With Snyder's style (which, despite what WB and Snyder has tried to say, will probably be the style of all the DC movies) she could be played by Rob Schneider and it probably wouldn't be any better or worse then any actress considering the material they'll be given.