Yeah, that video actually features a lot of new information, besides confirming the foot which are created from paper by the foot lieutenant (the other ninja figure on the playset) they say:
"You'll have to wait and see what happens with Shredder" So, seems like he will indeed be in the show.
Meat Sweats literally sweats meats
also Baron Draxum to be officially unveilled at the Nick Awards show
They obtain mystical powers. "They'll have these weapons one season Maybe they'll eventually graduate to their main weapons later"
"Raphael will be starting out as a leader"
https://www.youtube.com/watch?v=5EDImjMFjTs
https://www.youtube.com/watch?v=uy2RRoCOLp8
http://forums.thetechnodrome.com/forumdisplay.php?f=41
They're aware that they're coming off of the 2012 show and that fans are "very passionate" so they know most hate the show
"be patient, wait until you see it, it'll all make sense, it's all respectful to the franchise"