I would love to be able to test level 5 - it adds a whole new spell level and some mechanics that would benefit from EA testing.
- 3rd level spells - it's the first level where strong AOEs (damage or control) is introduced. Would also love to see if they implement things like Fly, etc. I would love to see how that balances things out.
- Extra Attacks - unlike previous editions, 5E in PnP is super flexible with extra attacks. You can attack and move in any combination - would love to see if Larian keeps that.
If we look at the past at DOS2 - anything that went through the EA (fort joy) was definitely of higher quality.