Sucker Punch Studios revealed a lot of new info about Ghost of Tsushima in an interview, including the fact that players will not be forced to stick with a single style, be it Samurai or Ghost.
Ghost of Tsushima may strike some observers as another Sekiro game but since this is not FromSoftware that we are talking about, it is not really surprising that the games will differ as opposed to copying each other.
Nate Fox, the game director for Ghost of Tsushima, talked with IGN and revealed that players will be able to freely switch their playstyle as Ghost and Samurai are quite different from one another.
In case you are not much into stealth, you can always go to being a samurai and slicing opponents up in open combat since Jin, the protagonist, will "start with great swordskills and that never goes away".
Then again, this appears to be the harder way to play the game as the combat itself will be challenging. People will go down in one or two sword hits so taking on a large group of Mongols will most likely spell doom for Jin.
Unlike Jin's swordsmanship which he starts off with immediately, the Ghost playstyle will be progression based. Going through the game the player will "get the reputation and abilities as the ghost" which will likely help them take enemies down silently or make the Mongols tremble in terror, which was already showcased in gameplay.
Since there aren't massive monsters that serve as boss fight here, players will likely find their challenge in duels. These can be initiated with expert swordsmen and they "are incredibly difficult and they're driven from personality and get solved in the most cinematic way possible".
Furthermore, studying the opponent and understanding their attacks will be crucial to winning these duels. It remains to be seen if they will be able to withstand too many attacks while dropping Jin in a single strike.