I predicted way back when the Dreamcast was canceled that it was the beginning of the end for gameplay innovation and new IP, and I was right. One of the top conceptual comments from publishers today is excusing the fact that the industry won't take chances on new ideas today. Sega did that almost constantly as a hardware manufacturer, which is probably one of the top reasons why they ultimately had to stop.
The masses want simple, familiar, and especially popular brand names. Art doesn't sell, uniqueness doesn't sell, innovation definitely doesn't sell. Quality can make a game successful among gamers though.