In short, yes. Here's why:
The components have a paired design, they are meant to work together.
HVAC technology has seen major leaps in the recent past, and you should get both components from the same technological generation for optimal performance.
Matching units will work more efficiently.
Consider the age of your current equipment, if it is old, consider replacing it.
A new system will have a new warranty period.
Replacing the complete system will offer more reliability and comfort too.
Be sure to seek consultation from the HVAC unit replacement crew before you finalize a decision.