For a show about the fastest man alive, The Flash doesn't have much momentum anymore. The first of the Arrow spin-offs is still very enjoyable but it is also in a rut. Since the incredibly strong season 1, The Flash has essentially followed the same formula each and every year. The Flash has become so predictable that the "shocking" reveal of Savitar's identity in "I Know Who You Are" verged dangerously close to self-parody. In season 4 The Flash needs to have something of a soft reboot and change things up drastically. Here are four ways the show has grown stale and needs to be fixed in the future.
http://www.buddytv.com/articles/the-flash/4-reasons-why-the-flash-season-64500.aspx
http://www.buddytv.com/articles/the-flash/4-reasons-why-the-flash-season-64500.aspx