SnowDog said:
I don't remember reading anything about when SST will reappear. My personal guess would be that it won't appear until Mongoose gets their miniature production going on again.
IIRC Mp has the license through 2009.
As to new minis/books SST progressed from minis coming back in 2009-2010, to new ruleset, to a PDF rulebook, to dead:
http://www.mongoosepublishing.com/phpBB2/viewtopic.php?p=490389&highlight=sst#490389
http://www.mongoosepublishing.com/phpBB2/viewtopic.php?p=544552&highlight=playtest#544552
http://blog.mongoosepublishing.co.uk/index.php?blog=2&s=Why+do+Companies+do+Mad+Things%3F&sentence=AND