Are you sure you mean the X2 or are you sure you mean 2 years? The X2 was released on May 26th, 2011. I know it feels like a long time. I too have been suffering. Although development has been better than it could be, the lack of an unlocked bootloader and now official denial of ICS kind of put the nail in the coffin for me. Not to mention that since the introduction of the next gen phones (One X, SGS III, etc), you can readily pick up a used LTE GNex for under $400 with accessories.
Cons for you seem like battery life. If you are burning through your X2 extended in a few hours, you're going to be screwed with LTE. Your only option would be to get an unofficial extended battery. Something like the Seidio 3800 mah. It's going to add some significant bulk, however. You may also want to consider the RAZR Maxx. It's going to get official ICS, but sadly no unlocked bootloader. I think I'm done with Motorola. They are way to resistent to the darker side of Android, contrasted with HTC's bootloader unlocking promises.
Spec wise, minus the battery, GNex will be a great upgrade to the X2. Faster better chip, better screen.
Good Luck!