No they won't. Very few cars had them for good reason. V layout engines are more expensive to produce than an inline 4. You're duplicating some of the parts required, and making packaging the engine more difficult. There is also a problem with vibrations - V4s need balance shafts to stop it from absolutely destroying itself.
Porsche used the V4 in the 919 because they wanted to use the maximum allowed hybrid power output that the ACO regulations allowed (8MJ). To do that, they had to use a smaller ICE. Costs of producing the engine were a non-factor, and the car wasn't being mass produced, so that didn't matter. Vibrations were still a problem, but Porsche threw millions at development to get around that. The reason they picked V4 over an I4 is because it lowered the centre of gravity of the car - something makes a huge difference to race cars, but doesn't mean much to road cars, especially with the SUV trend that's going on.
The V4 engine layout doesn't bring any advantages to road cars. It was phased out a long time ago, and won't be back. It offers some benefits to racing engines, but only if the regulations are designed in a way that makes it viable. The Le Mans regulations were setup to make that an option. Should the regulations be equal (rather than offsetting hybrid v ICE, as ACO regulations did), then the V4 is less viable than the V6 or V8.
The Porsche 919 wasn't particularly interesting on its own. The 919, TS050 and R18 together on track were interesting because they all had different power solutions. That was the beauty of the ACO Le Mans regulations. Unfortunately, costs got out of hand extremely quickly.