I think a .750 OPS from Kwan is very unlikely. The league knows him and I'm sure they're aware of his lack of power everywhere except for down and in. Hell, I know it so you know they know it. You think they'll look to go to his strength or away from it?
He literally has a 739 career OPS through his age 25 season, lol.
26 and up is when more power usually comes. If Willi Castro can spike his OPS to 750 at that age (26 last year), so can absolutely Kwan.
Same goes for Will Brennan, btw.