I fully expected an announcement at PSX, to the degree that when it didn't happen, it felt like it showed that they aren't even remotely concerned with it.
I have a bunch of friends who were excited to hear about getting to play Suikoden II only to discover they couldn't get it on their brand new PS4s. These were all 360 owners last gen, and Sony seems to be failing to realize that, especially in the US, they have a large audience who never owned a PS3/PSP/Vita and in many cases were too young to experience all the great games on the PS1 or simply didn't get to all the great games that it had to offer.
I personally want PS2 BC more than any other feature, but that is probably a much more complex issue to deal with. At the very least PS1 BC should have happened already and it seems bizarre that they haven't implemented it yet.