The Scot has plummeted to 16th in the rankings -- his lowest position for nine years -- and began his comeback with a charity game against Federer in Glasgow last week.
"His body recovered well after that ... we are confident and hopeful that he will be back to his best," Delgado told Sky Sports.
"We are in the process now of getting ready for a few weeks ... to get a pre-season block together... get some good players to practise with and pick up that level.
"The plan is to start in Brisbane in the first week of the year, ... there is a week's gap between that and the Australian Open," the coach added.
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Delgado said Murray's spirits were lifted after meeting his fellow professionals in London and that the 30-year-old had missed being on the road while recovering.
"It was great to be back and see all the guys again and also to give him the feel of coming to a tennis event. He hasn't been to one for a few months.
"He is missing that a lot. He will need that, practising with those guys over the next couple of months to get him ready for next year."
(Reporting by Shrivathsa Sridhar in Bengaluru; Editing by Peter Rutherford)
