The mileage look increase looks fine. Obviously don’t be a slave to the plan and take a day off or a down week to avoid injury when you need it.
You’ll want to do some tempo work to target other systems. You’ll here words like critical velocity, half marathon pace, 1 hour pace. But if you are a 5 min miler right now, then doing something like 6-8 x 1k @ 6 min pace and 4-5 x 1 mile @ 6:20-6:30 pace are some key workouts.
It may sound to do slower than goal work, but you optimize systems that are key components of thw mile. Also, you can occasionally do some 200-300m reps @ 800m pace as you get closer to peaking.
Jack Daniels, Pfitzinger, amd others will have good 16 week plans. So while you want to get comfortable running the mile paces, it’s just one component.