It would be a failure if it doesn't. Zen Pinall 2 on PS4 does exactly that, it auto-searches your PSN account for any PS3 tables that can transfer over and downloads them/unlocks them for the PS4 version.
you mean a failure like removing features that have been there since rock band 1?
such as missing a ton of little things that are odd they missed?
it would just be one more tally on the list of things they should have done before release but didn't do.
I wouldn't be surprised if it wasn't there but it was part of the second update that comes out early next year... you know after all the people that have supported them through the years and have a large dlc library already slowly downloaded everything lol.
I mean I have the game preordered and I will enjoy it, just not expecting much from it aside from being able to get new songs for the platform again and playing harmonies on all songs while doing a career. from all I have heard I'm basically expecting this thing to feel like a decently well done... eh I don't really want to say free to play title, but I am not sure what you would call something that comes with the sytem to play stuff but you have to pay to unlock content to play... what ever you would call that, and that I am merely paying $60 to get the soundtrack included with the game (and not being given the option to download it for free without the soundtrack)
rather bare bones, but over time will get better. Ideally they will sell enough (which hopefully won't be an issue after it averages a 65-70 on metacritic with people stuck on the missing features) to keep making things better and in a year or two we will have a real rock band 4 that feels like a true successor.
for now I will just be happy someone got full harmonies (as vocals are my number one played thing in rock band) in and hope for some more linkin park and some imagine dragons dlc and against all odds something like I fight dragons dlc
and heck if we can get some spungebob maybe I can get lucky and get something like stronger than you from steven universe
to be fair there are plenty of rock songs that others wouldn't be horrified at like those I mentioned but I would likely buy all of those day 1 without a thought lol.