I own all of FFG's LCGs, but the only one that gets any consistent play is the LotR, both because I can whip it out for solo play and because, frankly for me, it's a more interesting and compelling design. The others got boring after a few plays, but this hasn't happened with LotR. And I understand this is a purely personal opinion based on my own interests and play style.
With that in mind, though, I'm really hoping FFG keeps SW as a solo/co-op LCG; otherwise, it's most likely a no-purchase for me as I already have two PvP Star Wars card games which I never play anymore nor can I find anyone else to play them with me. It was the LotR-like solo/co-op aspect that absolutely sold me on and excited me about this product.
I wouldn't mind if it had a well-designed PvP variant, but not if it weakens the design. Trying to please two masters and do two different things at once can weaken the ultimate product to where it doesn't really please anyone.
If people want to play the Empire, and there's a big enough demand, then let FFG design a second LCG that is solo/coop for the Imperials. Then you could have an option for mating the two games together for those who wanted to do that.
I'm thinking, too, why would I want to play the Empire? Wiz-Kids just announced a solitaire-co-op board game for LotR in which players play the Nazguls trying to kill the Hobbits and get the ring. I enjoy their games--Mage Knight is fantastic--but I can't imagine myself buying this new one as I have zero interest in playing a Nazgul. It turns the spirit and adventure of LotR on its head. I think that's true for playing the Empire, too, in SW, which, I know, is just my personal opinion. I completely honor those who would like to do so, it's just not my cup of tea.