Yes, yes it could. Some day, maybe, possibly there could be a chance.
But it's not very likely. I happen to believe in both science and ghosts, so I know it's absolutely possibly possible. But I also know it's very unlikely.
Here's the bottom line: Scientists aren't in the business of knowing stuff (like people prefer to think), they're in the business of admitting they don't know stuff. That's why they're always doing research, in fact. If scientists already knew all the answers, they wouldn't need any research funding. Who would need to research stuff they already know everything about? Exactly, because that would be a total waste of time and money.
If you ask any accredited scientist if they know all the answers, they'll laugh at you and tell you they don't even understand all the questions yet. And since nobody has been truly dead (mostly dead doesn't count) and lived to tell about it, the scientists will just have to wait.