Gosho Aoyama comment about M23, posted in official movie site (1/16/19):
Hello, it's me, Aoyama! This year's movie will be the first to(take place) overseas! Conan and Kid will be very active in Singapore!
Ran and Shinichi, with their new relationship, also makes you wonder (how it'll be like) but...
But the (main) highlight is indeed, Kyougoku Vs Kid!
The strong Kyougoku, who feels (he's) in the wrong manga, and his flashy action! (See) it on the big screen!
Enjoy it while clenching your "fists"♪
"I shall revive again, again AND AGAIN!"