Minato still wins this,,
-Despite obito having 2 kamui he still has to manifest physically in-order to attack minato,,, not only that but double kamui still cant be faster than FTG,,, since the latter is instant,,,
-Minato having kunai spread throughout the battlefield,, would thereby allow him to evade each of the kamui warps effectively through FTG,,, as he would always outspeed obito once he materialises to attack Minato,, thus resulting in the latter getting marked,,
-Minato still wins this in quite a similar way to how he did in canon