Even if Apple can't or doesn't want to work out the licensing for Blu-ray video it would still be great if they included Blu-ray drives for data usage. Internet app/game purchasing may be getting more popular but downloading multi-gigabyte programs is still not always fast or convenient especially for people with bandwidth caps. Apple was quick to offer DVD readers across the entire Mac product line early on, which meant Mac developers could quickly switch to DVD only distribution when programs started overflowing onto multiple CDs, whereas on Windows, developers had to offer both DVD and multi-CD versions which is more expensive. Many games and some program suites, including some of Apple's own professional applications, are already requiring multiple DVDs. The faster Apple starts to offer at least Blu-ray data disc readers across their product line, the faster the installed base grows and the faster program distribution can simplify onto single Blu-ray disc instead of multiple DVDs.
I'm hoping for ATI Mobility HD5000 series GPUs, preferably at least the HD5750 since it has GDDR5. I don't find Optimus a good enough justification to use nVidia's now older generation mobile GPUs, regardless of rebranding, since I and I'm thinking most users would find the IGP sufficient while on battery anyways since Intel's Arrandale IGP can handle H.264 acceleration, Flash acceleration, and even light OpenCL acceleration assuming the relevant parties cared enough to write Mac drivers for these features. Also IPS screens, Firewire 3200, and a flush SD slot would be nice. I'm not expecting USB 3.0 since that requires a dedicated chip which Apple may be reluctant to spare motherboard space for. For CPUs, I'm not expecting quad core Clarksfield's given the high power consumption and heat and low clockspeeds. The common Core i7 720QM can only Turbo Boost to a theoretical 2.4GHz in dual core mode, the most common use case for most users, while the similarly priced dual core Core i7 620M can Turbo Boost up to 3.06GHz with 2 cores. So for most users and use cases, dual core Arrandale will be faster than quad core Clarksfield. Even in well threaded applications, with almost 2 times the Turbo Boost clock speed, the Core i7 620M won't be far behind a fully utilized Core i7 720QM. I'm hoping that Apple convinced Intel to give them some limited volume higher clock speed Arrandale's for a BTO option to help mitigate complaints about lack of quad cores, say a 2.93GHz Arrandale (3.33GHz 2 core Turbo Boost, 3.6GHz single core Turbo), while maintaining the same 35W TDP rating.