I have a feeling Brandt is staying because loyalty is such a big thing with him.
I liked Kontos last year, particularly when he lit up later in the season, but in his pro career he has played for a new team every year, so I suspect he may be moving again. If he does leave, he may fancy going for a treble of PO titles with different teams.
Sanford's departure seems to be taken as read, though I don't know the origin of that assumption.
My bet is Brandt plus a new player with a decent point-scoring record.