For preseason, why not just add every single item back into the game?

Seriously, the game has changed so much over the years, with so many new champions, and it's preseason so what does it really matter? Put them all back in, see what works and what doesn't in a REAL SCENARIO not just internal testing, and then tweak / remove problematic items over the course of the preseason.

Test out some new items as well while you're at it!

Seriously, it's preseason. Be bold.

Don't just limit yourselves to lethality items.