You more than likely will be able to download it. 90% of Nintendo's games can be downloaded via the eShop, and I se no reason why this would be any different. Though I'd suggest not downloading it because the physical game comes with a free amiibo card, something you wont be able to get on the eShop (which is why this game might not come to the eShop because of the card, but I still see no reason why it wouldn't)