Kind of.

The Marine Corps always struggles with how to justify itself as a separate force. The Army does the land fighting and the Navy does the ship fighting and where does that leave the Corps? In other militaries "marines" are just Army soldiers assigned to ships. Plus, you have the issue of it being a component of the Department of the Navy--it's not called the Department of the Navy because the Marines are top dog over there. So, there is a lot of pressure behind the idea of folding the Marines into the Army.

But, the Marines have always found a mission that they will excel at and that requires a different force composition, or mindset, or just particular brand of crazy than the Army--amphibious assault, guarding nuclear weapons on a carrier, or the first reaction force into a conflict zone. They also have done a very good job at building a very strong esprit. You can say that it makes sense from a bureaucratic perspective to do away with the Corps, but from a "winning wars" perspective they keep serving vital functions, so it's not likely they'll ever be disbanded.