The centenary Le Mans is going to be legendary. Toyota, Peugeot, Ferrari, Porsche, Audi, possibly others in the top class? This will top 1999 for stacked top class entries.
As for Penske - 4 cars, 2 in WEC, 2 in IMSA, customer cars too, multi-year contract, this will definitely mean some very healthy grid numbers as long as teams have the budget to run one of these things (at least it won't be on the same scale as the old LMP1 hybrids). Will this be Penske's final milestone conquered with the LM24?