What I can tell with this version is you'll be using the bull-dozer a lot more than previous SimCitys... The city map is relatively small and buildings like schools, town halls, casinos have to grow physically to be upgraded. If it's just basic residential/commercial/industrial in the way they will automatically be removed by the act of placing an upgrade but roads or other specially placed buildings need bull-dozing.
As the city evolves you may not want as much industry or you may need to move industry to clear up pollution so you'll be doing a lot of demolishing.
Cities have resources like coal and oil too, you want to zone industry over those areas to tap into them.