I'm of the view this could go on for 2-3 years if the talk of Essendon opening up the war chest to resource a legal battle. Courts move slowly and although I'm not 100% over all the ins and outs, I'm sure there are various avenues for appeal that will be exhausted until such time as Essendon get the outcome they want - or run out of options trying to get that outcome.
Hard to see any final determination being reached in the short term for mine..... sadly.