Right then, from what I've been able to find out:
Martin Barre has so far recorded four tracks for a new album to be released later in the year.
A Passion Play will get the special edition treatment and EMI will hopefully also be re-releasing Benefit, both with Steve Wilson's involvement. I can't find out if bonus tracks will be included but you never know.
Ian Anderson has written some lyrics for a new album with a possible release date of March 2014. Whether this will be a solo album/Jethro Tull album/or an Ian Anderson band production is not known at the present time.
I suppose at the present time all this is open to delays, wishful thinking and time constraints but with this amount of activity it looks like the Tull machine, in all its various forms, is still in operation.
Finally, happy Easter to everyone.