Well not as long as they are at least 10 times a new RGB LASER 4K DCi projector. And these are largely still technology demo's to convince people of potential. And let manufacturers/vendors learn and continue product development.
The current internal RGB LASER array DCi projectors are designed to fit in existing Xenon projector space. Repurposing/recovery of projection area, requires reconstruction.
Panasonic offered a light engine replacement/for its ~30 K lumens projectors, but only one as that was the max for the rest of the projector. Don't remember at how many thousand hours, 25, 30, 40 x2? They showed how they do this at ISE a few years ago.