My local group has quit SWLCG ever since FFG's announced Warhammer 40K. We're all die-hard SW fans, but also WH40K fans as well. Guess our wallets can only take so much abuse.
(We're in Malaysia, so games tend to be more costly due to standards of living and all that.)
That said, we'll still hold on to whatever we bought, and slip back in if need be. Never really took off here, as ANR's got the lion's share of the LCG scene. There's easily several dozen ANR regulars here, which is large by local standards, and fewer than 10 or 15 SWLCG players scattered through the capital city region. A May 4th tournament had only two people showing up, who eventually had 2 - 3 quick games before going home.
We've already talked about the need for more regular expansions and how the six month hiatus pretty much killed it: yeah, I wholeheartedly agree. I only played weekly/fortnightly, but I remember how people here starting selling their SWLCG collections during those six months.
I also remember how local difficulties in getting our Edge of Darkness sets was the start of the SWLCG rot here. Waiting nearly 2 months for the sets basically forced us to move on to deck-building games etc.
My bunch played Magic casually (never did tournaments) on weekends, and the one thing that FFG could copy off Wizards is their committment to timelines. Granted I do understand that the scale & resourcing that Wizards have is something that FFG just doesn't have, but looks like whatever they're doing, it's working better now? At least I see the sets rolling off more regularly.
Back to the question on what it'll take FFG to get me back into the game: I honestly don't know. Not even sure if the new SW movies will do anything. I suspect my bunch will still be hooked on the WH40K LCG, but who knows, heh...