At E3 if I recall correctly, Konami's president/CEO DID bother to mention Castlevania's 25th, but it was only briefly. I think it went something like "..Castlevania turns 25 this year, and also we have other stuff planned, etc."
LOL, yeah, I remember that. It was horribly lame of Konami to give a small, insignificant "heads up" only to brush away from the topic. Horrible PR department! The way they came off, it was like, "Oh yeah, I forgot. Castlevania's turning 25. And now, for some more IMPORTANT NEWS....."

Still, these things should be handled in advance. To the point where, at the very least, Konami, themselves, no Cox, would've come out ON the anniversary day itself and wish CV fans a "Happy 25th Anniversary!". They didn't even do that. LOL!