The last 5 minutes were extremely suspenseful. Some saw those guys walking in as hitmen. Others may have seen them as bodyguards. Others, just as normal diners in the restaurant who we magnified because of the suspense filled theme of that scene.

The one guy walks into the bathroom as Meadow finally gets the car parked, causing her a delay in sitting at the table. Fade to black. Silence. Does he come out of the bathroom thinking that Tony is sitting all alone on that side of the table? Does he come out shooting and hit Meadow instead of Tony as she slides next to him at the table?

Or were these guys bodyguards. If you re-watch you will see that each guy walks into the restaurant seconds before one of Tony's family memebers walks in.

Or did it end, as others have already pointed out, with the real family being together, just as many past seasons have ended?

I think that it was brilliant of Chase to cause all that suspense and then cut to black and silence.