Coming from another fandom that celebrated a big anniversary a few years ago, I found that Pokemon's celebration is very lacking. There's not a whole lot going on with it. The various companies seem to feel that they don't have to do much. That releasing games that were probably going to be released anyhow is enough, just because it's the Pokemon brand.
The sheer lack of information is really hurting any excitement for the games that are coming out soon. There also doesn't seem to be a whole lot else going on with the celebration, either. (Though I might have missed something.) There's not a lot to reenergize the fandom, to bring back the ones who left that were fans of Pokemon twenty-five years ago.
This!
I was hoping we'd at least see some more information on BDSP or Legends before they threw the pre-order page at us. x_x Overall there hasn't really been much to hype about. Things like music collaborations were pretty cool though, I'll admit, but that becomes old news fast and by itself isn't really much. Seems like something they only celebrated a little bit initially, and now it's no longer relevant. Not sure if they meant for this to be a long-lasting celebration throughout the year but it doesn't look like it.
Katy Perry's song was good, but had very little 'Pokémon' to it imo. Not much would have changed if Pichu/Pikachu were taken out, I think?