so in the teaser it looks like:
peridot and steven actually hit the cluster?? but nobody else seems to be with them. there's a distinct lack of the other crystal gems, and a distinct lack of jasper. my thoughts are that maybe after malachite is defeated, steven somehow gets lapis's gem or something (maybe he bubbles it), and maybe jasper captures the other crystal gems? could also be possible that jasper gets bubbled and the others are guarding it, but it seems strange for steven and peri to go to the cluster on their own. i get the feeling something dire is happening. maybe yellow diamond comes to earth and Kick Butt, but i duno. in any case, jasper's clearly Mad. and wants to Tear Those Gems a New One™ so i wouldn't be surprised if she somehow put the STrong on them