It's not gon flop cos pokemon main title will be in it. It will be far from many ppl expectation (of switch getting AAA ports), but ppl will always buy any pokemon console. Then when switch gets decent sale number, other developers will start making an exclusive game for switch, and the sale number increase again. It's 3ds all over again
And to the poster that wrote, "why are pokemon, mario, etc still selling well?" You should reflect on why wiiu failed really hard.