[SUGGESTION] A second upgrade for boots

Warning! Huge wall of text incoming

Everybody knows boots. Those you get when you don't have enough money for an item in your build path. They give flat movement speed: 25 for tier one and (mostly) 45 for tier two. Yes, a higher movement speed is essential, especially early and mid-game, but late-game boots fall off considerably. Yes, you'll reach places faster, but now everything revolves around teamfights and MS only matters a little for repositioning in those. This results in many players switching boots with a better item: ADCs go for a second PD, Yi goes for Trinity, Mages go for Luden's and Corki fuels his ROFL-copter with anything else than boots.

So, what do you suggest, you may ask. Well, as the title says: a second upgrade. The first upgrade is classic: go for Alacrity if you need more speed to wander around, Homeguard if you're losing, Captain if you're the support or Distortion if you're a horse. No-one buys Furor.

Anyway, let's get to the part where I actually show you my ideas:

There are different upgrades for each type of boots. I'm not very good with balance, but I think these upgrades should be available at level 16. As for the cost, it could be anywhere from 1000 to 2500 gold, depending on how strong these upgrades will be.

1. - 15% hybrid penetration. Champions who need these boots are obviously casters, both AP and AD. So best way to boost their effectiveness is give them penetration. Not too high I'd say and they'd stack multiplicatively with other %pen items.
2. - Gives AD**/Crit chance/**Life steal based on champion's attack speed OR gives Attack Speed based on crit chance/damage. As I said, I can't do this much balance by myself. Champs that usually buy these boots are AA reliant and they will buy AD/Crit or life steal(sorry Teemo, Kayle), so giving them stats based on other stats they buy would be nice. Not too high though, we don't want any Draven with full crit chance wander around the jungle, waiting to one-shot yordles.
3. - Physical damage received grants stacks of [insert cool passive name here]. At 100 stacks, you can cast [Ability] to receive a normal**/physical dmg shield based on Max HP/**Armor OR Reduces damage taken from critical strikes by 15%(stacks multiplicatively with Reinforced Armor.
4. - Slows grant you a stacking buff(5 max) that reduces all incoming damage by 3%. The buff lasts 3 seconds and all stacks are lost at once. may be a little overpowered
5. - Dealing magic damage heals for 2% of the damage dealt(calculated before resistances and penetration). Dealing magic damage stacks this up to 5 times, for a maximum of 10%. Stacks multiplicatively with the passive from the new WOTA OR Dealing magic damage reduces target's Magic Resist by 4%, stacking up to 5 times for a maximum of 20% Magic penetration. Stacks multiplicatively with other Magic penetration items.
6. - Magical damage received grants stacks of [passive]. At 100 stacks you can cast [Ability] to receive a normal**/magic dmg shield based on Max HP/**MR OR Reduces damage taken from Area of Effect abilities by 7%(stacks multiplicatively with Evasive).
7. - No idea for these, most junglers switch these to other boots anyway. Any idea is welcomed.

Thanks for reading all this. The ideas are obviously here for referece, I just wanted to give you and Rito how boots could evolve, and maybe we will see something similar in the future. Waiting for feedback and I'll really like to hear(or read) a rioter's opinion on boots late-game.

Have a nice day(it's 01:33 AM here though).