I hope the next MBPs come with HiDPI and IPS displays... but I'll take either one. I expect Apple to focus heavily on Macs this year. I think we're going to be overwhelmed with the Mac updates this year. I also wouldn't be surprised if they expand their line up. At this point they need more products, not less.
I despise having 1/2 the battery life that could be gained from the ODD's space. I despise the lack of ports on the right side of my MBP.
There are a few things I'd like to see from Apple on a display level, but I don't know their feasibility at a manufacturing level within Apple's cost parameters. IPS has obviously gotten a lot cheaper. If they placed a large enough order, I suppose it's possible. The cost breakdown is definitely a bit different with a laptop though, especially with relative cpu costs. It wouldn't surprise me immensely to see them expand their line a bit, but that goes against the general forum attitude until they do such a thing. It's weird because most of the arguments seem to be in favor of whatever Apple is doing at that second.
Looking at the actual hardware that is available, I think it would be good if they maintained some differentiation between their machines. Heat and fan noise seem to be common points of user stress, so better heat dissipation in their power models would be excellent.