Considering that the rig is going to Diorite East Block first...

Considering that the rig is going to Diorite East Block first for 9-10 holes for a total of 1000m of drilling I can bet that this will all be RC drilling so they will be sampling as they drill and maybe knocking out 1 or 2 holes per day if they are only 100m drill holes, then bagging and sampling is pretty fast so could be sending samples away to labs in a week or two. As others have said - samples will end up in logistically logical "batches" i.e. whatever fits on a sample cage/ute/trailer/truck and then anywhere from 1-4 weeks for assay turn results (labs pretty busy at the moment I expect).

The second part of the drilling is the 15,000m Mt StirlingDiorite Block which surely will have some deeper slower RC drilling and maybe even a few diamond tails on some of the deepest holes (I can see at least one 450-500m length hole on a cross section so that would be diamond drill core). Logging and sampling diamond drill core takes longer but presuming they are later in the drill program and making the assumption/ leap of logic that they drill the shallower easier RC holes first and then work up to the deeper diamond core later I wouldn't be surprised if there are still assays pending near the end of the year.