If an upgrade is expected, it'll sour the process when it doesn't happen - which is almost all of the time. The most you can expect is to have priority boarding, a personal greeting on board and fancy coloured tags on your bags (which are meaningless). But that's all.

QR comp upgraded my party of 3 a year or so ago (BKK-HAN). It was 2 x WP and 1 x NB status. Tickets were the cheapest possible. The main cabin on the 77W was about half full. Apart from that, I cannot recall an op up in at least 5 years prior to that.