In a discussion about their pending merger, Fiat Chrysler revealed that the combined company's future vehicles in the small to mid-size range will be built on two of PSA's platforms. The reasoning behind it is that PSA's platforms are more modern than FCA's which first debuted in 2003. They are also capable of a wider range of propulsion methods like electrification that are harder to incorporate into the aging platform that FCA is using.
The smaller of the two platforms, PSA's CMP, launched last year is found under the Peugeot 208, 2008, DS 3 Crossback and the new Opel Corsa. The larger platform is called EMP2 and launched in 2016. It underpins the Peugeot 3008, 5008, 508, DS7 Crossback, Citroen C5 Aircross, and Opel Grandland. Both of these platforms could become the basis for new Jeep, Dodge, and Fiat models. The first possible FCA model to debut on one of these platforms is likely to be a small crossover for Alfa Romeo, due out in 2022.
On the other hand, the Ram trucks and larger Jeep models will continue to use technology developed by FCA. The next generation Jeep Grand Cherokee is already well into development and the forthcoming Wagoneer and Grand Wagoneer are set to go into production in early 2021.
The primary question mark remains around the larger Chrysler 300, Dodge Charger and Challenger, and Chrysler Pacifica.