'Stay in touch' is good, but I'd prefer a custom alarm or reminder that simply says 'contact in x days' or 'on x date'.
All too often, you contact someone, but if they never get back to you, you forget to followup. Ideally, I can set a reminder. This could be implemented as an extension of the current 'stay in touch' feature, or just a separate snooze alarm type of thing. .