As its been production for a good number of years.
Besides the blue hand. Do you like the faux aged luminous look?
Neither really has the "official" Panerai look as they're both contemporary models, so Panerai can do whatever they like to the look of the dials while keeping the cases to the standard styling.
If you want the new model. Wait for it. Don't buy the old because your impatient as you may end wanting to sell it at a loss when the one you do want comes out.