Promising news from The Wrestling Observer/Figure Four Online:

From those close to Lesnar, he's getting motivated strongly to return. Nothing is 100% at this moment, but barring another health setback, he will return. I do know there is a target hoped for Lesnar vs. Shane Carwin on the Memorial Day weekend show in Las Vegas, but that's just a timing guess. That could be a big one because if Quinton Jackson is to fight Rashad Evans, that would seem to be the show it would be on. There is nothing definitive on Jackson at this point.