Yes, I think it bookshops will gradually fade away...but I mean gradually. Fifty years time they're liable to be an oddity, bit like trying to find a blacksmith in a big city. Books will still be around, but in different forms, I expect. And, in all probability, in some form we haven't even conceived of yet.
I can recall as a child (I'm talking 65 years ago) reading a comic whereby the writer takes us deeper and deeper into the future until there stands a little gadget that nobody even knows what it was made for and what it would do. A USB drive today would have had the same mystery then as this gadget will have in the future.
No, I expect we'll have a new mystery gadget that will do many things for us, include holding the contesnts of our books.