There have been discussions in the broader community about procedures for deriving photometry for saturated stars with various instruments. These procedures usually involve ignoring or masking out saturated pixels, and just using the unsaturated pixels, typically located in the wings of the PSF. Most of these discussions that I am aware of have taken place in the context of the Kepler/K2 mission (see here, here, and here (PDF).
It would be extremely valuable to apply such techniques to LSST. Is anyone working on this? It would be quite dependent on the structure and treatment of blooming effects and bleed trails, but it could potentially deliver useful photometry for targets at any brightness, effectively removing the LSST saturation limit. @mjuric, any thoughts about this?