Tough luck for Abbrederis. From what I'd read about Abbrederis' camp so far, it's unlikely they would have cut him, but part of me thinks this could be a blessing in disguise for him. He'll have time to get healthy, stronger, and well-versed in the offense. It probably hurts the special teams more than anything this year.
I've been getting the impression the last WR spot was going to be either Dorsey or White, my guess is they both make it (if they keep 6 WRs, which I think they will). I like Harper but think he ends up on the PS (or signed off of it). I suppose the injury helps out Janis' chances as well but I think he gets invited to join the PS too.