Woot .. well so far so good .. after a few full days of working on this and I think I have got it at least working 99%. The other 1% being the slight bug that repositions the frame if you have it positioned in a place that may cause boundary issues.
If you wanna read up on what I have been doing to utilise/test the new functionality its on the addons comment pages here :
http://www.wowinterface.com/download....html#comments. Otherwise here's a screen shot of it at least working without nUI. Testing that next
In the screenshot you will see the filter options and 3 quests displayed due to the filter showing all. If we turn off completed and remote then only 1 will display. If nothing is being tracked then the frame will hide if autohide is not switched off and not in an infopanel but if there is nothing being displayed but there is something being tracked it will just collapse.
Theoretically the infopanel version should work perfectly as the main changes are to do with collapsing, expanding and displaying which is pretty much ignored with everything expanded and shown rofl.
Once I have everything working on 3.3.3 then I will re-test to see if the tests I made in the addon are enough for it to work in 3.3.2 as well.