It all points to higher grades in the coming weeks! As I have said many times, these announcements take time to be produced and are often a week behind. IMO they would already know grades are going to be uplifted but don't have data to release to the market.
"Plant optimisation is expected to lift processing throughput in the coming weeks."
"Given material from the first two days of processing was from reef margins and included considerable development material, Company management has confidence in future production outcomes."