At the time of writing, it appears that VH-MMC was staying at Emerald Airport for at least the night.
UPDATE! On Friday 21 August, VH-MMC departing Emerald Airport and made the short hop up to my local Clermont Aerodrome. It then departed back directly to the Sunshine Coast.
Meanwhile, also on Thursday 20 August, it appears that the passengers from VH-MMC were flown to my local Clermont Aerodrome via an unidentified helicopter when they then joined Hinterland Aviation Cessna 208 Caravan VH-ETF, which arrived direct from Rockhampton Airport as HND310. The Caravan then departed up to the Labona Station Airstrip within Adani Australia's Carmichael Coal Mine site as HND3101.
UPDATE! On Friday 21 August, both VH-ETF returned to Clermont Aerdrome from Labona as HND331 before departing to Rockhampton Airport as HND3311 - presumably with the passengers off VH-MMC which had flown in a little while earlier - see above!