Head of Team Ninja Yosuke Hayashi takes a direct stab at Capcom (and others) who fill their fighting game rosters with DLC characters in a recent Videogamer interview:
“We feel like this is a kind of sport, and you don’t change the rules for sports. Everybody plays by the same rules. You don’t have a 14-player soccer game versus an 11-player soccer game. That’s just not fair”
For Hayashi, introducing characters late into the cycle of Dead or Alive 5’s life unbalances the finely tuned mixture created during development, and splits the community. The argument has come from disgruntled fans in the past, but coming from an actual developer reassures those opinions.
Note that Tecmo’s recent Ninja Gaiden 3 came with controversial DLC weapons, so this doesn’t rule out any additional trinkets post-launch.