I imagine instead of making headlights easier to replace it's going to skyrocket in price and run off of closed source software. Why would this be a good addition for cars?
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The keyword seldom is a red herring in that if you have to replace them even once--at $500/ea material + who knows how much in labor--you would have exceeded the lifecycle maintenance cost of a traditional HID setup by roughly an order of magnitude.
Furthmore, headlight housing these days are largely manufactured using polymers which are susceptible to "fogging up" over time, so replacement may not necessarily be driven by DLP failure mode. However, given DLP is essentially MEMS tech and target platforms are subjected to significant vibration and wide operating temperature gamut, I question how MTBF of these chips will be impacted vs. their traditional fixed consumer application over commercial temperature ranges.
This isn't about performance. It's about suckering a market into gold plating a system to achieve IP lockdown--solving a problem that simply doesn't exist. OEMs are already refusing to sell factory service manuals to vehicle owners. This is yet another step in the wrong direction towards a completely unmaintainable vehicle.