It is difficult to predict with certainty which games will be the best open-world games of 2023, as many factors, such as the success of the game's development and marketing, can impact its reception. However, here is a list of some open-world games that are expected to be released in 2023, along with their potential features, release dates, and challenges:

Cyberpunk 2077"

"Cyberpunk 2077": This open-world game, developed by CD Project Red, is set in a dystopian future and features a branching narrative, customizable character abilities, and a vast open world to explore. It is expected to be released on September 17, 2023, and may face challenges in living up to the high expectations set by its previous release delays and marketing.

"Gotham Knights"

"Gotham Knights": This open-world game, developed by WB Games Montréal, is set in the Batman universe, and features a co-op mode, a variety of playable characters, and an open world set in Gotham City. It is expected to be released in the summer of 2023 and may face challenges in differentiating itself from other Batman games and in maintaining a consistent level of quality throughout its content.

"Deathloop"

"Deathloop": This open-world game, developed by Arcane Studios, is set on a mysterious island and features a time loop mechanic, a variety of weapons and abilities, and an open world to explore. It is expected to be released on September 14, 2023, and may face challenges in maintaining player engagement with its repetitive gameplay structure.

"The Elder Scrolls VI"

"The Elder Scrolls VI": This open-world game, developed by Bethesda Game Studios, is set in the fantasy world of Tamriel, and features a vast open world to explore, a variety of races and classes to choose from, and a branching narrative. It is expected to be released in 2023 and may face challenges in living up to the high expectations set by its predecessor, "The Elder Scrolls V: Skyrim."

In conclusion, 2023 is shaping up to be a promising year for open-world games, with a variety of titles expected to be released that offer a wide range of gameplay experiences and settings. These games may face challenges in meeting player expectations and in differentiating themselves from other games in the genre, but they have the potential to be highly enjoyable and immersive experiences.