The following information is derived and rewritten from the Wrestling Observer newsletter. Subscription information is available at WrestlingObserver.com:
According to the Wrestling Observer newsletter, K-1 is looking to book a date in Las Vegas on May 19th with a MMA-main event bout between former NCAA two-time amateur wrestling champion and WWE superstar Brock Lesnar against K-1 star Choi-Hong-Man.
That's pretty much it for now, but with the Lesnar/MMA subject being a big question mark for such a long time, this seems to at least breathe some life to the topic. We'll see.