VIT will scale with attack power, STR will scale but not as much

[Alistaire]

It will either be (with 100 as a baseline) VIT = 100 & STR = 0 or VIT = 100 & STR = 150. The first would encourage using VIT entirely, the second would mean that you can still make trade offs for DPS increases but they won't be as large as they are currently. VIT = STR could be possible but it'd be... weird...

VIT = STR would also still make it so tanks would be pressured into having melded accessories. I150 str+vit ends up in 60 prime stat which considering i210 is either 47 str or 49 vit, making VIT = STR would make those accessories pretty much required. And it wouldn't be "reducing str" at all.

since STR still persists on Left side gear(unless they intend to remove STR from all Tank gear to date and beyond)

That is the simplest solution. Remove STR from tank gear, make it like NIN and DEX. If their solution ends up more complex than this without ending up effectively any different I'm just gonna shake my head.