"Everything is up in the air," said McDonald as he returned home after a Rarotongan holiday.
The weight, which had been an issue, will be back close to the 54kg - McDonald's bottom limit - when he gets to Hong Kong.
"It was good to have a holiday and give my body a rest, because I've had a pretty tough season, and I'm feeling good now and the wasting will be fine."
McDonald says not too much should be read into the fact he is riding the final weeks of the Hong Kong season. "I'm not signing a contract, in fact I'm led to believe I could have had a contract in Hong Kong at any part of the last 12 months."
McDonald will be riding at Te Teko tomorrow and at the weekend before heading to Hong Kong.
He has a strong book of five rides for Te Teko, which last night was rated a slow (8).