I would be surprised if Apple didn't. What's the point of updating MBPs if they don't really update them? Whether we will see SB in all MBPs or just in some of them is a whole new question though.
SB brings an i7 processor to the table which runs on 17 watts which is incredible energy efficiency and there is no reason not to use that on numerous models and trims as it brings maximum capability with minimal consumption.
Sandy Bridge is really interesting as the models that will replace the Atom processors are much more powerful but also are very low energy. The decrease in power consumption with the next generation processor, Ivy Bridge, will take it even further and Ivy Bridge should standardize quad cores in portables.
I think it is the first 17 watt i7 (although IIRC an Arrandale i7 is only around 20 watts), but none the less, it is a step towards more efficient computing and the standardization of quad cores. At 1.5GHz, it IIRC will be the fastest processor that uses only 17 watts of power and that 1.5GHz can still be faster with hyperthreading/turbo boost, can't it?
Also, isn't the upcoming 32nm Atom (or whatever name is used to replace it) based on Sandy Bridge as well as the 22nm shrink?
Arrandale ULVs were 18W and topped out at 1.46GHz. SBs do have more aggressive Turbo (up to 2.7GHz for ULVs compared to 2.53GHz in Arrandale), but I wouldn't say it's that huge step. Pretty similar to what other models got.
Atom is the brand name, I don't think it's going to be replaced. I'm not sure what microarchitecture Atoms use but next gen Atoms are supposed to have twice the performance over the current Atoms. Atoms are still much smaller though, the dual core Atom is 484mm^2 while SB ULV is 744mm^2, that is important in small form factors
if we don't, think of all the violence the currently waiting MBP people are gonna get into.. its too risky for apple for them to update their products with a C2D (though discontinued, they must have some number in stock?)
now going off the C2D discontinuation, do you think they will deplete their C2D stocks then update it or just leave those for the MBA or sell them or do something
Now that Intel is now letting nvidia use their graphics chips with their processors, we are most likely looking at a core i3-i5 with a geforce 330m