I have a question about joining the army then reenlisting?

I'm fixing to join the army 21B, and I got airborne school in my contract. I was wondering if after my 4 years if I leave the army and go to college and do rotc will i be able to reenlist but as an officer? Will i still be able to wear my airborne pin, and if before i leave i get my sapper tab will i still be able to wear those and any other pins/tabs i get like ranger ect.? I know i shouldve asked this during meps but i totally forgot.