An enhanced version of the games titled Samurai Warriors 4 DX[c] was released for Nintendo Switch and Playstation 4 in Japan in 2019, and for Windows (via Steam) worldwide with Japanese and English support in May 2024.

This edition contains more than 150 previously released DLC from Samurai Warriors 4, including costumes, weapons, customization parts, scenarios, and background music.

A reboot of the series titled Samurai Warriors 5 was released in June and July of 2021 for Nintendo Switch, Windows, PlayStation 4, and Xbox One.

The game features character-switching, similar to the spin-off, Samurai Warriors: Chronicles, with which players can take two characters into battles simultaneously, and freely switch between the two.

Enemy generals still use the older shockwave finishers, and are no longer fully invincible for their durations (they instead are granted Hyper Armor).

Many figures with little relevancy to the period, particularly women who for the most part stayed out of battles, have larger roles; Koshōshō, notable for being Motochika Chōsokabe's wife in real life, becomes his primary rival in his conquest of Shikoku and is the representative of the Miyoshi clan in-game.

Unlike the previous games, there are no hypothetical routes; as a result, the fates of the characters are played out as history stated.

* denotes characters added in expansions Bold denotes characters who are available by default The game has received positive reviews, at the time becoming the highest rated entry in the series (until the release of Samurai Warriors 5 in 2021), with Famitsu giving a score of 34 out of 40 in both PlayStation 3 and PlayStation Vita versions.

Koei Tecmo collaborated with the Japanese Racing Association (JRA) to release Derby Musō (ダービー無双) on May 25, 2014 for the PC.

Derby Musō reuses assets from Samurai Warriors 4 to create a horse racing game, like that of the Winning Post series, with famous Japanese racehorses.

The game received a revision, titled Samurai Warriors 4-II (戦国無双4-II, Sengoku Musō 4-II), which was released in 2015 for Japan on February 11, in North America on September 29, and in Europe on October 2.

The gameplay focuses more on strategy as in other Empires expansions, with players issuing commands and taking suggestions to and from their subordinate military officers.