PC Gamer talked to Yuji Horii at PAX East and asked about Dragon Quest 11.
More information.Why Dragon Quest 11 will have English voice acting even though the Japanese version has none
In a 2018 interview with Weekly Famitsu, as translated by Gematsu, Dragon Quest 11's designers explained why the Japanese version wouldn't have voiced characters. While it was apparently a debate within the studio, they ultimately decided to maintain Dragon Quest's traditional text-only dialogue, which saved time and allowed series creator Yuji Horii to change the script at any point during development. The English version of Dragon Quest 11, however, will have character voices when it releases this September. At PAX East last week, I asked why.
Producer Hokuto Okamoto told me that part of the reasoning goes back to Dragon Quest 8, which also released with English voices. "That was received quite well by the players of [DQ8], and so we wanted to continue that with DQ11," he said via a translator. And regarding Dragon Quest 11 specifically, he said that by using various English dialects they were able to communicate distinctions between regions in the world and "add additional depth to the characters."
[...]