Hello
There are no plans to change the A-10 Early.
We have numerous vehicles across the game which may be of the same variant, but can represent an "early" or "late" stage of that aircrafts lifespan. It does not mean that a separate variant is denoted, but simply the representation of that aircraft is defined by a specific time period in its history. This is exactly the case with the A-10A Early and Late. There were weaponry/equipment differences that are reflected in game. A whole new separate variant is not required to denote it as "Early" or "Late" as it can be the same variant, reflected at two different stages.
Right now both of these variants are as intended.