Kha'zix Kit Rework/Update Idea

Kha'zix is suffering a pretty low win rate atm, so I thought it'd be interesting to share this idea.

Have Kha's R be more interactive with his base abilities by adding some sort of addition effect to them whenever he's stealthed from his R.

You could do some viktor style execution on his Q and make the ability a bit of a two-parter in combination with his current passive. Maybe make it so that his on hit passive (which is refreshed by R) refreshes the remaining CD on his Q. Would give some real incentive to evolve his R as well as giving it a Sion style system of choice in regards to defensive/offensive usage. To make it more of a 'two-parter', I guess you could maybe swap his isolation passive on Q with his current passive, so isolation mechanic is his new passive and is affected by all damage - not just his Q - and his current passive becomes his Q passive, having some sort of interaction with his Q and the previously level scaling damage and slow is affected by Q rank rather than level. Maxing Q would now net more overall damage due to sharper on hit passive damage, but W max could become the less bursty more durable approach.

About the CD refund thing on Q - making it so that his current on hit passive refreshes it would make it so that comboing his auto attacks and Q together is necessary and doesn't just allow him to URF mode Q someone to death.

Perhaps his W could be reworked to a skill which utilizes the new theme of blinding someone which Quinn is now using, of reducing vision range. Perhaps instead of slowing, this mechanic could be introduced instead due to his proposed Q passive slow. Whist being used with an R proc, his W could apply the slow of his Q on hit passive like it used to in season 3, and consume the charge. This would keep his kit pretty intuitive IMO when considering his slowing on hit passive.

For his E, instead of leaping whilst stealthed and breaking it, he could maybe blink like Kassadin the same distance as his E leap perhaps? This just makes his E more interesting and mechanically open as a champion, I guess; could also stop it from breaking stealth perhaps? Idk.

I honestly think you'd have to slightly reduce his evolved E leap range as a result tho.

Just an Idea I wanted to discuss with you guys I guess, was thinking about it recently given his low win rate and how he could be rebooted to be more fun like most champs are nowdays.