Most of the big parts were covered above.
I am cross qualified on the 200/300/500/700 models.
I think the biggest shift is the mentality that you are flying a computerized aircraft. The 200 was steam powered the 300 was digital but the 700 is computerized.
Example....I had a Feel diff light come on in cruise. A/B were not providing the same pressure to the rudder PCU right??? No I was told to do a light test (turn all the annunciaters on) and that tested the circuitry for the computers to their respective source....huh. Worked and we had the feel dif system checked on landing to make sure (grounded it).
Its a different kind of airplane...next generation is the best description.