The next Audi A5 will signal the company's evolved naming system that reserves even numbers for EVs, while odd numbers designate their gas-powered counterparts. This means the A5 will be the successor to today's A4 sedan, though prototypes suggest more of a coupe-like Sportback form than a traditional sedan. Confused yet? There will also be a wagon variant, along with the usual S and RS performance versions. It's likely that the current two-door A5 coupe will be axed after the outgoing generation.