No.

Some people don't understand that it's not that simple
How would you turn a closet into a fridge?

Think about that bad example
SP would have to be completely redone
You can't just infinitely update something for a variety of reasons. The bases of SP, such as physics, for example, would need to be completely modified.
It's much better to make it completely from scratch.

@OrdinaryTankBuilder ooo yeah

@OrdinaryTankBuilder Nothing's stupid if it would be cool

How about the devs merge both games into one