Okay, here's the actual final nail in the coffin to house Alias.

This is from a recent piece in Sci-Fi Wire:

Since Garner will be limited in the kinds of action scenes she can do, the show will be adding a younger character who will become Sydney Bristow's protege.

There you have it -- a classic Cousin Oliver. All that needs doing is adding Ted McGinley to the cast. If I've confused you, go here.