We're several episodes on here in the states...
And so far, Iris hasn't succumbed to your fears. All in all, the series remains crackling.
However, I suspect that I now know who really killed Barry's mother, but mum's the word for now.
You didn't mention, though, the lovely casting choice CW producers made for Barry's unjustly-imprisoned father: John Wesley Shipp, who played Barry Allen in the 1990 CBS TV series. A thoughtful touch.