Activision will "evaluate" Spyro subtitles moving forward
They're absent from the Reignited Trilogy.
Spyro: Reignited Trilogy was well-received by a lot of fans (including us, as you can tell from our review), even topping the UK charts in a week packed with new releases, but one thing was absent from the release, and that thing was an option for subtitles.
As reported by GamePitt, fans questioned as to why this was, and Activision gave the following statement on the matter:
"When Toys For Bob set out to make an awesome game collection, there were certain decisions that needed to be made throughout the process. The team remained committed to keep the integrity and legacy of Spyro that fans remembered intact. The game was built from the ground up using a new engine for the team (Unreal 4), and was localized in languages that had not previously been attempted by the studio. While there's no industry standard for subtitles, the studio and Activision care about the fans' experience especially with respect to accessibility for people with different abilities, and will evaluate going forward."
It seems that there may be hope for this coming into the game in the future, but it has been pointed out how unusual it is for a game in 2018 not to have subtitles in the first place.