I think people who played the original on PS3 or 360 being annoyed at Bayonetta 2 not being a multiplat were pretty justified in feeling that way, especially when those platforms had the larger install base and those gamers had supported the original game.
The damage is kinda done now though, what would be more annoying to those people is if Bayonetta 3 was released as a multiplat for current gen, including NX, PS4 and XBox (maybe PC too), but Bayonetta 2 didn't get a mulitplat release, because people couldn't play all 3 games unless they owned a Wii U.
It makes sense for a multiplat to go exclusive, if the platform it's exclusive on is the most dominant system and it's where that game's audience is, but to just go exclusive to attempt to entice people onto a platform they had no interest in is just BS, it's an anti-consumer practice.
I don't think it would be an issue if Bayonetta 3 was an NX exclusive, especially if NX has backwards compatibility with Wii U games, then people can at least play all 3 releases on one system. If B3 is made on a platform with tech similar to PS4 then the game would run similarly to how it would on PS4 anyway and it may potentially entice a larger install base onto the NX.
I'd personally like to see it as an NX launch game, but with Platinum busy on Scalebound, Nier Automata and a heavily rumored Turtles game I think a sequel would be far off. Maybe we won't hear anything about it until next year some time, if Nier manages to make it to release this year as planned.
Platinum needs to grow as a studio if they want to make this many games on the AAA level.
