I hope they don’t fall back on just doing silver age Superman again. You need to give him a bit of an edge in today’s world. People will just make fun of him again if not.
I doubt anyone at WB+D would think that has a place with / interest from modern day audiences. There's no evidence of a widespread call for the silly, bumbling, "golly gee, Lois" Silver Age version, extending to the Donner interpretation of the character. Singer attempted it and was met with less than enthusiastic reactions--not due to Routh's version being a so-called deadbeat dad in the film--but the slavish dedication to bring back the worst of the Newmans and Benton's influence which defined the script of the Donner film. The comics matured since the late 60s, responding to readers' interests, but film adaptations took a little longer (
The Incredible Hulk TV series being the first and most overtly mature comic-based production starting in 1977), and next to no one looked back, wanting the worst of late Golden/Silver Age comics again.
Just as WB would never unearth the Adam West
Batman series or the
Legends of the Superheroes TV specials and believe there's significant interest in the productions ever being the main film version (or even as an alternate universe experiment), one can see any idea for the handling of Superman being the same.
The existing Cavill outings already laid out the most believable character growth (slowly--by necessity), with Superman trying to find his way as an alien in a world where part of the population may not trust a being like him in his debut, to taking on the role of protector (in a more official capacity)--to the point of seeing Batman and his methods as a genuine criminal threat to order & the
idea of justice in
Dawn of Justice, to his acceptance of his place in ZSJL.
Going from that natural progression, Cavill's Superman no longer has to stand apart from humanity as much as needed to do in
Man of Steel.
What's important to note is that this is all about the
Superman side--not the Clark side; as Kent, he was already seen as trying to integrate as much as he could through his gateway to humanity in his relationships with Lois and his mother. Its the Alien With Otherworldly Power side that needed to find a place among fragile humans, and by the time of ZSJL, he achieved that.
As a result, Cavill's next movie performance--contrary to those who rattle their bones with the self-generated fiction that Superman would be exactly the same as he had been in MoS (when he was not in his other appearances so far) should (if WB+D handles this properly) build on the aforementioned character growth, and not dump an unwanted, Saturday morning / Weisinger version on a world that willingly left that behind several generations ago.