Imo footwork should just be replaced
Soooooo Warlords Bloodlust was super cancerous, hard to balance, and overall killed diversity in the old system. Sooooo why did we bring it back in the first place? I get footwork is a bit different but the idea is the same: free sustain and ms at all stages. This kills all diversity for ADCs like Caitlyn who cant use any other rune as well as footwork. Not to mention free lane sustain with no downsides is pretty cancer. It's not fun to play against as it just feel like your trades are meaningless. combine this with second wind and d shield and LOOK! Youll never get poked down. Its also already showing that its a balance nightmare. Its been changed majorly THREE TIMES already.
Its just overall a boring, uninteractive, unfun rune that should have never made it to the new system.