Short answers, pulled from the story.
Final Fantasy X/X-2 HD Remaster launched in Japan in December 2013 for PlayStation 3 and PlayStation Vita, followed by a worldwide release in March 2014. A PS4 version arrived in May 2015, the Windows version on the 12th of May 2016, and Nintendo Switch and Xbox One versions on the 16th of April 2019.
The Shanghai-based studio Virtuos handled the bulk of the remastering work, with Square Enix's internal staff reassembling original assets and assisting with high-definition data. The Chinese side of development was led by managing director Pan Feng, while original team members including Motomu Toriyama and Yusuke Naora supervised production.
The PS3 and Vita versions sold over 339,000 copies combined in Japan in their first week, and 206,000 copies in North America within a month of launch. The Steam version had sold over 584,000 copies as of April 2018, and the broader Final Fantasy X series surpassed 21.1 million units worldwide by the end of March 2022.
Final Fantasy X: Will is an original audio drama written by Kazushige Nojima that plays during the credits of the remaster. It introduces two new characters, Chuami and Kurgum, and follows Yuna as she investigates a phenomenon where the dead return, ending with her preparing to face Sin once more.
As of July 2021, Tetsuya Nomura confirmed that Kazushige Nojima has written a complete story for a potential third game. Shinji Hashimoto confirmed in October 2016 that Final Fantasy X-3 is possible, and director Motomu Toriyama expressed interest in returning to the world of Spira after finishing work on Final Fantasy VII Remake.
The Vita version scored 86 out of 100 on Metacritic, the PS3 version 85, the PS4 version 84, and the PC version 83. Critics generally praised the graphical upgrades while noting some uneven treatment between character models and environments.