I totally agree. I want werewolves to become the main threat at some point,original werewolves at that! season 5 could easily be the season to delve into the werewolf back story, especially if Silas remains around, coz he predates vampires so he would know about werewolves more.Maybe his lover was an original werewolf. I dont think there can be an immortal werwolf but I have posited an idea how that is possible on a show like this, I for example still think the story of Henrik Michaelson could be explained in such a way as to make him the immortal werewolf of the show.According to the Mikaelsons he was killed by wolves but what if when Esther performed the ritual on her children like coz he was part of their blood,he was resurrcetd too.Furthermore if he was mauled by original werewolves he could have turned werewolf (Maybe original werewolves can make others werewolf just like vampires make others vampire BUT because he had blood linking him to undead originals he resurrected as an original undead werewolf!!! So it's very possible to write an immortal werewolf into the show . Alternatively what if werewolves who wanted to strip the curse off themselves went to some expression practicing witches and those told them to draw out the curse they would need to be linked and then a witch took the curse upon him/herself but in the process those wolves died and the witch became a being sustained by a curse and so unable to age or die and sobecame an immortal wolf..
Anyway yeah lets hope we get to see original wolves soon.Hayley may be one , she has never turned or got her eyes in wolf glow mode ,and yet Klaus says he has seen her mark on only a small nuber of individuals part of a wolf pack so she could be key in finding the root of the werewolf backstory