I am still trying to sort it and the acronyms out. I was under the assumption that LMH was basically going to supplant LMP1...with LMP2 remaining a spec class for prototypes. Then the promised LMH cars started disappearing...before they appeared (the Valkrie vamoosed!) . LMDh came out of nowhere (Romulus maybe) for 2022, watering down the LMH strategy...leaving me all WTF! Of course if the manufacturers will not play, I gess WEC had to go all plan B and return to the past/future with LMDh (part of which is a planned, unholy union with IMSA).
While I was hoping all these new, top-speed seeking hypercar manufacturers would rush to/fill WEC's grid with all sorts of road-based tech...then I realized that the short attention span of today's folks does not mesh well with endurance racing. I suppose I will have to visit a parallel universe to see a Devel 16 go head to head with the Lotus E-R9.
But to your question...I first assumed the road-based LMH to have a number of handicaps the prototype would not...with LMDh rapidly dominating. Then I saw Toyota's latest iteration of the sole LMH...hard to discern from LMP1 at first glance. Still, I am going to assume that LMH will result in a "failure to launch scenario" and WEC will have a hybrid LMP2 as its top tier...sadly.