My proposal to any modders with 10 minutes to spare. I propose to divide the Yari Ashigaru into two separate units
One that is purely a Japanese Pikeman and focused on defense and holding the line. This unit would be using the long yari that they use in vanilla. All stats except the following should be kept at vanilla.
-Melee Defense raised to 5 or 6 (leaning to 6 but balance testing needs to be done)
-Armor to 3
-Morale to 6 or 7
The other is more well rounded, with a higher attack bonus. This unit would be using the shorter yari common of the samurai. Unit slightly more expensive than Pike Ashigaru due to the higher skill needed with the short spear. All stats except the following should be kept at vanilla.
-Melee Attack raised to 5 or 6
-Morale to 6 or 7
-AntiCav dropped to 15
-Defense to 4
-Cost to 275
-Upkeep to 80 or 85
Open to opinion, help, suggestion, testing and an actual mod that creates this
Will be forever grateful if someone takes this up
Edit: If one takes this up, remember to upgrade Oda accordingly, Thanks