How will the fiber network upgrade be connected to my house?

I live in an older neighborhood in the Metro Denver area. My house is connected to the cable network via an aerial drop from a utility pole in an alley to a connector on the back of my house. A coax cable runs from the connector to a splitter inside my house. One piece of coax leads from the splitter to my cable modem. Another piece of coax leads from the splitter to my X1 box.

I just received an email message from Xfinity announcing an upcoming fiber network upgrade. I would like to know how the new fiber will be connected to my house. I have done a little research on the Internet and came across something called an optical network terminal (ONT), a box that is installed on the outside of a house. I have no idea if the upgrade will involve the installation of an ONT or some other such device.

Please provide more information.