So, what now? Necrozma is done, Marshadow is done, GS and thus HA GSC Legends are done, Megas are going to be done, UBs and Silvally are done in TCG. Only missing things are Crystal & Celebi, GO, Eternal Floette, PB colored Magearna and that's it. Global Link data explicitly confirms Ultra Sun and Ultra Moon are last games for Gen 7, and we don't have anything else to do.