I suppose having decided to ship out at the end of 2017, it probably wasn't too difficult a choice for Audi to bring that forward a year...would have been nice though to see a final hurrah from them after the last 16+ years.
Nissan will probably be too busy supplying everyone with LMP 2 engines from next year.
So, cue Porsche, Toyota and likely Ford branding replacing all the Audi stuff around the circuit?
MG Mark