Exicon 10P20/10N20 instead of 10P16/10N16?

Yes is the simple answer.

There are also the 'double die' versions (the 20N and P type) which have 16A rather than 8 A ratings. These are effectively two devices in parallel in the same package. For 99% of applications there would be no issue changing to those if you wanted. The gate/source capacitance of these is double the standard version and that is the loading the driver stage sees. In practice that is never an issue though.