Also, read somewhere that showrunners and fans are trying to revive ENT for a fifth season. Think this stands a chance of happening?
Unlikely. The show was pretty much continued by books. The Good that Men Do and Kobayashi Maru for starters and then the 2 books on Earth-Romulan War.
Screenwriters had ideas on how to continue the story, but never had the chances to apply them. It was good that at the start of season 4 they actually dropped the whole temporal cold war arc. IMO that was the weakest feature of Ent. That and maybe the lack of character development when it comes to certain characters, like Mayweather, Reed and maybe Hoshi.