@Meddler: Is Koggy getting any sort of update with the Marksmen pass?
I ask because, speaking from the ADC side of things, Koggy may as well not exist in Solo. The only ADC with a lower pick rate than Kog is Quinn (who's getting a remake). And while Koggy does get picked in LCS level play, two thirds of the time he's used as a solo-mid AP.
As it stands Vayne does the Tank-Buster thing more reliably than Kog while Jinx does the long-range auto-attacker thing more reliably. Koggy really needs something other than his quintessential weaknesses as a stand-out feature from champions vying for a similar niche.
Q a little AD scaling. Having it scale with both AP and AD would not hurt AP builds and it would help with AD builds.