Keep current insignia or get a new one?

[RP64]

The new insignia is a smart looking vehicle as pointed in another forum and I'm tempted to upgrade but... Should I?
I currently have a 2015 insignia 2.0 cdti with 100,000 miles. Well maintained and no issues so far. I drive 22000 miles a year roughly.
Should I run it for a couple more years or take the plunge and go for the upgrade?
Any big maintenance issues likely to come up soon? Cambelt and water pump already done