Being Human (USA)/WMG

Nora will not .
Even though she revealed  in the finale, she was also several months pregnant with a werewolf-human hybrid. This could have caused some sort of supernatural immunity to whatever causes. However, season 2 will have  trying to capture her in order to create a cure for themselves.

Josh will effectively become the leader of the first wolf pack.
His research into werewolves combined with his de facto alliance with Aidan will get out among other wolves and vampires. This in turn will cause ripples through said communities (or lack thereof for the wolves) and may very well end up being the wild card force that allows Aidan to 'prove' he is the right one to lead Boston. And over all, this will allow the show to develop more drama for Nora and Josh - intra-pack politics, leadership responsibilities, but also organizational drama between Aidan and Josh.
 * Nope. Wolfpacks are, if not common, at least not particularly rare.

Josh is (currently) an Omega.

 * Expanding on the above, Josh tends to defer to other wolves whenever they're around (Ray, ). Once he embraces his inner wolf, he'll be able to fight his way through the pack ranks.

Sally will .

 * As Reaper has said, she's got the potential, but she is very empathetic..

Josh will break the curse by (accidentally) killing Ray but circumstances will require him to become a werewolf if he wants to save his friends and family.
And Nora will be the one to curse him again.