On a different picture, someone asked how BGE's development was going which Michel replied something along the lines of "We've still got a ways to go, but it's getting better every day!", but "You should see something some time this year" is an even better sign, I think.
I hope he means we won't see *gameplay* at E3 and we have the small chance of seeing an animated teaser, but I'm being too optimistic there. I wouldn't bet money on it
Laura Kate Dale got the MarioxRabbids rumour right, so maybe this one will be right too
I don't see a 2018 release, maybe a 2020/2023 one. I think a trailer could exist. Anyways, we'll see something eventually, maybe soon...