Jeremy says goodbye?

OOooooo that sounds scary. Jeremy Clarkson's latest tweet just says one word and that leaves us only to wonder what is it for? Jeremy tweeted "goodbye" a few hours ago and there is no further report as to why since then. What could it mean? Jeremy quitting the job? Going on a long vacation? Won't be seen on top gear any more? If you have more information on that feel free to share. I love comments.