No, but it is a bit of an inside joke. We've had one estimate that was wrong by over a year. Basically, "when it's done" is your most accurate answer. If you want inaccurate answers, I can set you up with that too.
Right now, Harmy is very busy with real life, and his priority is getting Jedi up to 2.x-quality, and even that may be a long wait. Only after that's done will you see any movement toward 2.5 on ESB.