My best hope for a farcical ending is for Phillip to reach out to Wakana and they make up, and everyone is happy...
...until Wakana and Phillip start kissing, at which point they are run out of town with every single character in Double ever coming at them in Dopant/Rider form with torches and pitchforks, as Akiko yells that she didn't hear anything about this and Phillip reveals he had spent the day before researching Wincest and thought noone else knew about it.
It'll never happen, but it'd be hillarious.