Is there any reason to re-rack and wait another week after dry hopping before bottling? The only reason I can think of is for settling of residual dry hopped particulates. But if you don't syphon those out, is there any reason to wait?
No, in fact the rewards almost certainly don't outweigh the risk of oxygen pickup (or contamination) from the rack. This is especially the case if you're not going to be performing a true secondary fermentation (i.e. bottle- or keg-conditioning). Even if you are, best to rack straight into the bottle or keg so that any ill effects of oxygen pickup will be mitigated by immediate yeast action.
If you're worried about hop particles (or anything, really), just leave it where it is for another week. I can think of almost no case where it's better to rack again than it is to just leave the beer where it is a bit longer.