As a general impression, the 4E rogue seems to have the more narrowly defined role of the pre-3E thief, while keeping the 3E focus on tactical combat and minis.
In BECMI, your thief had the same skills of any thief of that level. No customization.
In 2E, you had the basic skills, plus some customization (points you were free to spend). You could not be proficient in heavy armor or certain weapons unless multi-classed.
In 3E, you had pretty much free rein to customize. Your rogue could have 0 ranks in Pick Pockets if you wanted, and more ranks in, say, Appraise. Your rogue could also (with the right feats) buckle on fullplate and pick up a greatsword.
In 4E, it appears that skills will be closest to 2E. You'll have a base skill level for the core skills, and potential to be even better at those or to be good at others. Not sure how weapons and armor will work; that might be more like 3E (depending on how the Fighter Training feat works).
And I do see 4E's continued emphasis (from 3E) on minis, battlemats, and precise movement and measuring. Sometimes that's what I'm looking for in an RPG, and sometimes not.