Probably, yes. That's the "problem" with APUs: both the CPU and the GPU are likely to be always lagging about a year behind the top CPU and the discrete GPU architectures, respectively.
So yeah, expect updated Bulldozer cores + a new Scalar+SIMD-based GPU on 22nm for the 2013 APU.
Perhaps as AMD gets used to their velocity thing and streamlines the process, this lag will be reduced to just 6 months or so, we'll see.
But from what I've read Trinity is based on updated BD core, so in that regard no lag to high end CPU's.
Anyway with yearly cadence this still will be huge step up compared to current situation.
I think thanks to APU's PC gaming will again gain on importance simply because nearly every new Laptop will be capable of pushing modernish games with ease.
I recon Steam user base will hit 6 million logged in users in 2012/13