Steve died the day after the 4S announcement and didn't give up Apple too long before that so that's a definite. It would probably be uneducated to say that the iPhone 5 wasn't in the later stages of design and development too so he probably had a large influence over most of that phone too.
Beyond that it's hard to say. I mean, he'd probably mentioned what should be added to the 5S too, he may have even had a fair part in the design and features of the 6 series too, maybe even the 7 series had a few pencilled bullet points but I think that's probably stretching it a bit far.
Rumour has it that the Watch was an early project while he was there and that was only released earlier this year. I think the thing is with tech, even if the parts aren't around, you can vaguely plan when incorporating them will be feasible, predicting when the market will want it is the hard part.