Could turn into something interesting. Not that I needed an incentive to play alts, but getting special abilities and perks are always appreciated. Hopefully, they'll keep expanding this feature over the coming months/years.
Now that I finished chapter one of my first character and having unlocked my Legacy, I do wonder how I'm going to link my human Bounty Hunter to my Twi'lek Jedi Guardian... Unless that's the very reason all playable races all look alike: they're all half-human and can be linked to one another?