Does Liam Dunbar Become an Alpha?

Since Scott was accepted to the University of California - Davis, he has since made Liam the acting "Alpha" of the McCall Pack in his absence, though Liam himself has admitted that he isn't actually an Alpha unless he kills one and takes their power.

Does Liam become the alpha?

'Teen Wolf' Spoilers: Season 6 Episode 2 — Liam Becoming New Alpha | TVLine.

Is Scott still a true alpha after biting Liam?

Scott is still a true alpha because Liam was not innocent as he destroyed his coaches car and resulted into an expultion.