That FD was absolutely spectacular, and perfect for Manta and Johnson.
Dean also choreographed both P/C's Olympic RD (the Ed Sheeran medley) and their tango RD last season, if I'm remembering correctly.
That's a pretty exhaustive list! I do think Romain Haguenauer deserves to be recognised as a separate choreographer from Dubrueil and Lauzon, though - his style is distinctive and rather different from theirs, and he has a pretty respectable body of work of his own.
Romain was inadvertantly left off the list. I don't know if he co-choreographs with Dubreil, but he works a lot on his own or (recently?) with Sam Chouinard and Ginette Cournoyer. He's been responsible (or partly responsible) for a lot of Fear and Gibson's programs, which I think are brilliant and suit them extraordinarily well.
I don't think Lauzon choreographs, though I'm willing to be proved wrong.