So, SFTW is next, likely followed by This Was in the fall (either Steven or Ian confirmed it was happening/done), and then... Hopefully Heavy Horses for Christmas or early 2018? Presumably, Stormwatch is on the docket, too, but I'm guessing that may be the end of the special editions.
The special editions might not end after "Stormwatch", but Steven Wilson's involvement will surely stop after "Stormwatch".
I personally would prefer "Heavy Horses" to come out in the Fall of this year, but just getting "Songs from the Wood" will be more than enough to satisfy me this year as far as Jethro Tull is concerned.
I have a strong feeling that this upcoming reissue will be the best one since "Minstrel in the Gallery".