>>21251504Around the same time. Pic Related.
Just like HG/SS to Platinum, and how they had characters/story elements cross over. (Cynthia, Arceus, Red Gyarados, Jasmine, ect.)
Z will do the same thing for B2/W2.
More likely than not, N will show up in the Post-Game, and we will probably get PrimalKyurem (Original Dragon)