Areas of the nucleus where chromatin organization will differ:
These I can think of that could have different morphologies; just in the Gzero and  the resting phase of the cell cycle.  Presumably all these areas it is DNA plus their manditory core proteins (histones etc splicing complexes polymerases and so on).

condensed chromatin adjacent to the nuclear lamina (two phases)
condensed chromatin at the hemisphere around nuclear pore complex
condensed chromatin from the Barr body with complete silencing
condensed chromatin from some epigenetic silencing
condensed chromatin at areas of nearly complete silencing
condensed chromatin and RNP of the granular component in the nucleolus
condensed chromatin and RNP of the dense fibrillar component
euchromatin within the fibrillar center (nucleolus)
euchromatin within the interchromatin granule clusters
perichromatin granules (and their adjacent lucent ring areas)
condensed chromatin and RNP in nuclear speckles
degree of cell differentiation and areas of ‘perhaps’ digestion

An additional array of changes would certainly occur during the mitotic cycle, and during the process of apoptosis while chromatin is being disassembled.