The issue I see is that on one hand, there's a lot of scepticism about this new generation and what it can actually do in terms of power and capabilities, as well as whether games are being mis-represented prior to release (e.g. Watch Dogs), but then on the other hand people are lapping-up last year's games re-released with slightly fancier graphics. We're all so obsessed with playing the numbers game now (1080p, 60fps) that I fear developers are going to be dissuaded from putting additional effort and power into other areas like improved AI, physics etc because doing so might mean reduced resolution and framerates which will end up with backlash. Games development is so costly (both in terms of money and time) that it's often safer for them to re-release a past hit than commit to a new idea.
Don't get me wrong, I'm not entirely against the idea and I do look forward to seeing GTA5, The Last Of Us, Metro etc looking even better, but I certainly wouldn't be buying them on release if they're full-price because I've done that once already. The Metro Redux pack has won me over because it's two games for a good price, but I can easily see most others being priced like new games.
