I doubt it. If Sony was really going to do this they would've already did it with the Vita.
Uh, they did do it with the Vita. Do you have any way of playing those PSP games you bought, those UMDs? No. The only way is to rebuy the PSP games. They already did it with the GO, and it continued with the Vita.
And even then, PS1 support took how long, and still how many games can you not play on there?? PS2 support is coming when? Yeah.
PSN ID: RyuuHou24 "I never said that....and even if I said it, I never said it" - Dr Peter Venkman RGB
Only if the PS4 is properly backwards compatible with the PS3. Those downloads were designed for the PS3. If they have to be updated to play on the PS4, I imagine you will just have you rebuy them when they are re-released.
I say if it's compatible then you'll be able to put it on the new system. If it's not you'll have to wait to see if they make it work or not. I doubt they'll go out of their way to make everything 100% compatible though. It's likely they'll let people use same psn names for the Vita's sake.
You can't discuss the pros and cons about anything now a days without someone complaining.
Sony has been big on building an "eco-system" based around PSN that spans and connects multiple devices together. The only problem I could see occurring is games not working properly on the PS4 hardware so we'd likely see Vita like support of DD games in which some games work and others don't.
They'll cut you off like they did with the transition from PSP to Vita, and then they'll slowly give it back. Even though it's complete BS and that stuff should have been available day one, fans will love them for it rather than giving them the hate they deserve for screwing it up in the first place.
It has been almost a year, why the hell are there STILL some PSP and PS1 games I bought on PSN that are incompatible with Vita?! You f***ed up massively, Sony!
"Jak and Daxter does not have a sequel so that doesn't prove anything." - DesperateMonkey