Our daughter has seats on VA (QR) from CBR -CPT via DOH. VA are only offering them a different date (same route) or a refund. They are taking the refund and we have rebooked on QF. This cost ~&5,000 more than the VA(QR) flights they had booked (2 adults and 1 child). But they needed to travel as our son, her brother who lives in the UAE is getting married in South Africa.
So no, VA is not offering re-routing or booking on another airline at the moment.
See screenshots of their policy in my post #1252 upthread.