Yeah, as soon as I heard that Lost was going to be 7 seasons, I knew it was gonna be a disaster. You can't spin a mystery box out that long. Either people will guess it, or they can't only because you're inconsistent.

I think they've got their ending in mind better than JJ Abrams mystery-box shows. I think they can drag it out one more season.

If there's going to be a fourth season, then the third will likely not be worth it. So if you have any interest, you might just wait another couple of years until it's all over.

Shows like this parcel out bits of info to make you keep watching and then inevitably get cancelled before revealing everything.