I imagine she and Jack would have limited (or no?) interaction, just because Leo likes to keep them at arm's length. I'll let you and Kit weigh in on that?
Either way, Jack is going to be SO FREAKING EXCITED to meet her finally! Obvs he's big into sports, so when he found out his big bro was dating/engaged to a soccer star, he made it a point to tune in for all her matches and probably knows all her stats by heart. lol.