does it have expansion series?
Yes, "Heart of Thorns" , "Path of fire"
Guild Wars 2
On January 24, 2015, at PAX South held in San Antonio, ArenaNet announced the first expansion for the game titled "Heart of Thorns". 
who is jeremy soule? An American composer of soundtracks for film, television, and video games can you mention some of his works apart from video games? "The Elder Scrolls", "Guild Wars", "Icewind Dale" what is his musical style? He prefers to call himself a "music practitioner", or someone who creates music in general rather than just one type of music as he is capable of many styles, such as Japanese pop who developed the first work that you mentioned? Bethesda Game Studios what is its genre? Action role-playing has it been in any controversy? Yes,  In August 2011, Bethesda Softworks contacted the developer of "Minecraft", Mojang, claiming that the intended trademark of the title "Scrolls" for its new game breached Bethesda's trademark on "The Elder Scrolls" who published the second work you had mentioned earlier? NCSOFT does it have a sequel? Yes, "Guild Wars 2"
wiki:15953688
Guild Wars 2 [SEP] "Heart of Thorns" expansion
On January 24, 2015, at PAX South held in San Antonio, ArenaNet announced the first expansion for the game titled "Heart of Thorns". The expansion introduced new group challenges, new profession specializations, a new profession, and an account-based "mastery" system for character progression through the new territories featured in it, as well as changes to current player versus player content. It was released on October 23, 2015 to positive reviews. With the second of the Living World seasons over, and an expansion on the way, releases were smaller as teasers for the expansion were released. On January 27, 2015, a number of bug fixes and balance improvements were released.