I don't have any experience with lorikeets, but since no one has answered your question, let me share with you what I learnt from a talk by Sylvie Aubin and Josee Birmingham at a parrot conference a few years ago. It was such news to me at the time that I started taking notes.
You are correct that nectar is no longer considered a significant part of the captive lorikeet's regular diet. This paradigm shift in lorikeet nutrition has taken place over the last decade and was pioneered by the Aubins in Canada. They noticed that a bird room full of lorikeets was like a room full of kids high on sugar, so they tried to reduce the sugar content in their lorikeets' diet, and they found the lorikeets' behavior much, much calmer.
The latest thinking is that lorikeets should be fed a regular diet of 75% normal pellets (Josee Birmingham and Sylvie Aubin recommended Tropican, but that would be expected, given the Hagen head office is in Canada) and 25% fruits and vegetables, supplemented by a few mealworms and/or crickets (apparently some lories catch insects in the wild!!), with nectar only offered as a treat every few days.
There was an article in Parrot Life magazine from 2007:
http://www.hagen.com/hari/pdf/ParrotLife_4.pdf
Hope this helps!