I wouldn't expect a price drop on this console anytime soon probably be at least a year in which case it would just be a game bundle package and still be $300. Nintendo knows it's selling so well they don't have to drop the price in order to sell more come holiday time. It will sell itself.
My guess 1-2 Switch bundle come the holidays considering the game has sold around 1.5 million copies. In which case might as well say screw it and get it now since 1-2 Switch isn't worth owning.
No price drop for sure, is too soon. But they might have like a cool bundle or an additional game kinda thing. Layaway a nice Splatoon or Mario Odyssey at Walmart, that way you have something secure, if you find a good deal get your money back.