Well the next generation of American CVN will be using EMALS. It is already on the plans and the R&D is in fully swing.

As to whether they should, I believe its a clear yes. There is a massive maintenance advantage over steam cats.

There is also major design emplacement advantages. Which are paralleled by the introduction of azipods as propulsors. With the transmission of energy through electricity you have more flexibility in the routing of the energy through the ship compare to pipes. Not forgetting the advantage of higher resistance to battle damage. Practically all marine engines can be easily geared to produce electricity, having them produce steam is more tricky. Hence donkey boilers in current Gas Turbine carrier designs.

With steam cats its somewhat tricky to have anything other than a straight piston shot. Not so with an Electro magnetic one. You can possibly even design it into a curve ski ramp.

Electro magnetic catapults also has major operational advantages in terms of throwing force. It is much easier to adjust the throw force on the fly for different aircraft types.

Assuming the R&D is successful, Electro magnetic catapults will be the default in new conventional carriers. However that is a huge IF, especially when we are talking about the R&D of military systems.

Excuse me but the description of the APKWS as a smart rocket sounds like a marketing term to make the system seem less expensive. Isn’t a smart rocket simply a guided missile?

The APKWS sound like a low end general purpose missile. Mundane, boring and probably quite useful. I’m just having a rant about silly euphemisms for sneaking weapon systems into budgets.