mix and match Campagnolo

currently using an old Centaur rear mech and Veloce shifters and a 105 front mech, c2007 i think, Currently it is all 9spd.

In the near future i am going to need to change the cassette and chain and cables. and the shifters are getting a bit worn….

Can anyone say whether the new campagnolo shifters will work with the last generation mechs.

Do i need a new 10spd mech to work on a 10spd cassette? are the front shifters still microindexed or am i going to need to get a new front mech? do the current 10spd shifters pull the same amount of cable as the previous generation 10spd shifters.

etc. etc, etc.