Right now, we get new mission master where they give SQ for servants that reach bond 6 or higher. Does that count? If yes, then I think we can expect something similiar like that.

Well every bond level from 6 to 9 gives you 3Sq and 2 Sq for SSRs and SRs.

Bond 11-15 gives you 30SQ per bond level up.

In JP BP level 15 activates the servants passive skill, 25% team bp gain.

And the usual coins and all.

So far it's just the 25% Partywide Bond Up Passive when a servant reaches B15.

Thanks for trying guys. I was under the impression that at some point there would be a straight extra payout for hitting a target on bond 10-15 that wasn't included in the coins and SQ. I must have misunderstood.

Anni 10 had a SQ reward for getting up to 10 servants bond 10 IIRC. Outside of that I don't recall anything.