I don't think you are going to see troops on the ground in Iran. No point to it. The 82nd Airborne is over there as a QRF for U.S. facilities, and nothing more.
What you are going to see, or read about, is missile and airstrikes against every element of the Iranian C3 structure. I don't know when, but it's coming, and when it comes it will be big. Buy stock In Raytheon. They're about to make a lot of money from you as a taxpayer, so you might as well invest in it.
Iran will do all they can to drag Israel into this, to try and make it an "Arabs -vs- The World" fight, much the same as Hussein did. And just like it was with him, it will fail. Remember, the Saudis hate Iran, and they rule the roost in the ME.
There will be terror attacks against U.S. interests and allies. It's coming, so expect it. But Iran has made a serious miscalculation here, and it is going to cost them dearly before it's all over. The Iranian military, and especially it's Command and Control structure, is about to get a lesson in modern warfare.