I have a flight in Virgin UC booked to PVG for March 2025 (using Virgin points), with an onward flight to HND with JAL (using Avios). It will be interesting to see what the alternative proposal for the booked flight to PVG will be - I would be happy if they offer ANA, but not holding my breath. I also hope the dates work for the onward flight, but that is less of a problem.