ACO allow Joker for Dallara, Ligier and Riley/Multimatic. Seems that all will get aero in both Le Mans and Sprint configurations and the R/M Mk. 30 probably getting other chassis allowances. These upgrades will also be applied to the DPi where applicable. The upgrades will be free to all teams/chassis.
https://www.lemans.org/en/news/lmp2-...for-2018/47565
L.P.