Superman is done now because he’s been over exposed, he has lost that orginal charm and he stars in way too many comics, there are also too many super cousins super cats, super dogs etc. I also feel a lot of fans are bored by his invincibility and sickened by his lecturing and bored by his MidWest Christian values. People are less into capes (very few exceptions), what’s cool today are the more meat and bones characters like Batman (one of the exceptions) and Wolverine. 
-Speedster Comics