>>39626241SM isn't a reboot because it builds upon the established lore from past series.
1) Ash still has his reserves at Oak's, including Tauros, Muk, and Bulbasaur.
2) Ash knew what Mega Evolution was.
3) Jessie still has Wobbuffet.
4) Pikachu started out with the moves it had from BW and XY.
5) Characters such as Matori that were introduced in DP play a role here.
6) Misty has Corsola and Gyarados, which she didn't acquire until Johto and AG, respectively. And Brock has Crobat and Steelix, also Johto and AG, respectively.
