The Spec B is the closest thing Subaru has made to an SVX since 1997. Especially since installing the 6-speed in my SVX, I'm always struck by the similarities between the two cars.
That being said, when the Legacy is due for retirement my next car will most likely be some year of 335xi, perhaps a 335d. I'm in no hurry to part with the Legacy though. 300HP, comfort, gizmos, 6-speed, Brembos, lots of personality, and 30 MPG make it a really great daily driver. Unfortunately Subaru doesn't have anything in the stable these days that can offer the same sort of combination. So it may be that in 5 or 6 years I'll be shopping for a 2016 BMW.
The SVX of course will always have a home in my garage.